40402340426 has 32 divisors (see below), whose sum is σ = 69525993600. Its totient is φ = 17249155776.

The previous prime is 40402340413. The next prime is 40402340443. The reversal of 40402340426 is 62404320404.

It is a super-2 number, since 2×40402340426² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11976476 + ... + 11979848.

It is an arithmetic number, because the mean of its divisors is an integer number (2172687300).

Almost surely, 2^40402340426 is an apocalyptic number.

40402340426 is a deficient number, since it is larger than the sum of its proper divisors (29123653174).

40402340426 is a wasteful number, since it uses less digits than its factorization.

40402340426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6398.

The product of its (nonzero) digits is 18432, while the sum is 29.

The spelling of 40402340426 in words is "forty billion, four hundred two million, three hundred forty thousand, four hundred twenty-six".