40007257402 has 32 divisors (see below), whose sum is σ = 71635652352. Its totient is φ = 16384477824.

The previous prime is 40007257397. The next prime is 40007257439. The reversal of 40007257402 is 20475270004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272488 + ... + 392764.

It is an arithmetic number, because the mean of its divisors is an integer number (2238614136).

Almost surely, 2^40007257402 is an apocalyptic number.

40007257402 is a deficient number, since it is larger than the sum of its proper divisors (31628394950).

40007257402 is a wasteful number, since it uses less digits than its factorization.

40007257402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121342.

The product of its (nonzero) digits is 15680, while the sum is 31.

The spelling of 40007257402 in words is "forty billion, seven million, two hundred fifty-seven thousand, four hundred two".