400061024956 has 36 divisors (see below), whose sum is σ = 746397539608. Its totient is φ = 187584208128.

The previous prime is 400061024917. The next prime is 400061024959. The reversal of 400061024956 is 659420160004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400061024959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 304470 + ... + 944893.

Almost surely, 2^400061024956 is an apocalyptic number.

It is an amenable number.

400061024956 is a deficient number, since it is larger than the sum of its proper divisors (346336514652).

400061024956 is a wasteful number, since it uses less digits than its factorization.

400061024956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249678 (or 1249659 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 400061024956 in words is "four hundred billion, sixty-one million, twenty-four thousand, nine hundred fifty-six".