2400402040 has 64 divisors (see below), whose sum is σ = 5733516960. Its totient is φ = 901324800.

The previous prime is 2400401999. The next prime is 2400402041. The reversal of 2400402040 is 402040042.

2400402040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400402041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268279 + ... + 277081.

Almost surely, 2^2400402040 is an apocalyptic number.

2400402040 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 2400402040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2866758480).

2400402040 is an abundant number, since it is smaller than the sum of its proper divisors (3333114920).

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

2400402040 is a wasteful number, since it uses less digits than its factorization.

2400402040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9232 (or 9228 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 2400402040 is about 48993.8979874025. The cubic root of 2400402040 is about 1338.9406567744.

Adding to 2400402040 its reverse (402040042), we get a palindrome (2802442082).

The spelling of 2400402040 in words is "two billion, four hundred million, four hundred two thousand, forty".