400412402351 has 16 divisors (see below), whose sum is σ = 446487672960. Its totient is φ = 356542314240.

The previous prime is 400412402347. The next prime is 400412402381. The reversal of 400412402351 is 153204214004.

It is not a de Polignac number, because 400412402351 - 2² = 400412402347 is a prime.

It is a super-2 number, since 2×400412402351² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400412402351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400412402381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65630 + ... + 897291.

It is an arithmetic number, because the mean of its divisors is an integer number (27905479560).

Almost surely, 2^400412402351 is an apocalyptic number.

400412402351 is a deficient number, since it is larger than the sum of its proper divisors (46075270609).

400412402351 is a wasteful number, since it uses less digits than its factorization.

400412402351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964066.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 400412402351 its reverse (153204214004), we get a palindrome (553616616355).

The spelling of 400412402351 in words is "four hundred billion, four hundred twelve million, four hundred two thousand, three hundred fifty-one".