2845740 has 48 divisors (see below), whose sum is σ = 8160768. Its totient is φ = 740544.

The previous prime is 2845727. The next prime is 2845789. The reversal of 2845740 is 475482.

2845740 = T₈₉ + T₉₀ + ... + T₂₆₀.

2845740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2845740² = 16196472295200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2845698 and 2845707.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2029 + ... + 3131.

It is an arithmetic number, because the mean of its divisors is an integer number (170016).

2^2845740 is an apocalyptic number.

2845740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2845740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4080384).

2845740 is an abundant number, since it is smaller than the sum of its proper divisors (5315028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2845740 is a wasteful number, since it uses less digits than its factorization.

2845740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158 (or 1156 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 2845740 is about 1686.9321266726. The cubic root of 2845740 is about 141.7093174157.

The spelling of 2845740 in words is "two million, eight hundred forty-five thousand, seven hundred forty".