2485740 has 48 divisors (see below), whose sum is σ = 7372512. Its totient is φ = 623616.

The previous prime is 2485739. The next prime is 2485759. The reversal of 2485740 is 475842.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2485698 and 2485707.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199 + ... + 2238.

It is an arithmetic number, because the mean of its divisors is an integer number (153594).

2^2485740 is an apocalyptic number.

2485740 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 2485740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3686256).

2485740 is an abundant number, since it is smaller than the sum of its proper divisors (4886772).

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

2485740 is a wasteful number, since it uses less digits than its factorization.

2485740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466 (or 2464 counting only the distinct ones).

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

The square root of 2485740 is about 1576.6229733199. The cubic root of 2485740 is about 135.4623379940.

The spelling of 2485740 in words is "two million, four hundred eighty-five thousand, seven hundred forty".