2457042138 has 24 divisors (see below), whose sum is σ = 5413824000. Its totient is φ = 805132104.

The previous prime is 2457042101. The next prime is 2457042149. The reversal of 2457042138 is 8312407542.

It is a happy number.

It is a super-2 number, since 2×2457042138² = 12074112135815222088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1155738 + ... + 1157861.

It is an arithmetic number, because the mean of its divisors is an integer number (225576000).

Almost surely, 2^2457042138 is an apocalyptic number.

2457042138 is an abundant number, since it is smaller than the sum of its proper divisors (2956781862).

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

2457042138 is a wasteful number, since it uses less digits than its factorization.

2457042138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2313666 (or 2313663 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 2457042138 is about 49568.5599750487. The cubic root of 2457042138 is about 1349.3901475905.

The spelling of 2457042138 in words is "two billion, four hundred fifty-seven million, forty-two thousand, one hundred thirty-eight".