2455740 has 72 divisors (see below), whose sum is σ = 8517600. Its totient is φ = 561024.

The previous prime is 2455729. The next prime is 2455741. The reversal of 2455740 is 475542.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2455741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 286 + ... + 2234.

It is an arithmetic number, because the mean of its divisors is an integer number (118300).

2^2455740 is an apocalyptic number.

2455740 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 2455740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4258800).

2455740 is an abundant number, since it is smaller than the sum of its proper divisors (6061860).

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

2455740 is a wasteful number, since it uses less digits than its factorization.

2455740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971 (or 1966 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 2455740 is about 1567.0800872961. The cubic root of 2455740 is about 134.9151730478.

The spelling of 2455740 in words is "two million, four hundred fifty-five thousand, seven hundred forty".