40024000402 has 8 divisors (see below), whose sum is σ = 60043520700. Its totient is φ = 20009493504.

The previous prime is 40024000399. The next prime is 40024000409. The reversal of 40024000402 is 20400042004.

40024000402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 39326459481 + 697540921 = 198309^2 + 26411^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (40024000409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1233327 + ... + 1265362.

Almost surely, 2^40024000402 is an apocalyptic number.

40024000402 is a deficient number, since it is larger than the sum of its proper divisors (20019520298).

40024000402 is a wasteful number, since it uses less digits than its factorization.

40024000402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506700.

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

Adding to 40024000402 its reverse (20400042004), we get a palindrome (60424042406).

The spelling of 40024000402 in words is "forty billion, twenty-four million, four hundred two", and thus it is an aban number.