400413331420 has 48 divisors (see below), whose sum is σ = 860508367488. Its totient is φ = 156425048640.

The previous prime is 400413331399. The next prime is 400413331429. The reversal of 400413331420 is 24133314004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400413331429) 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, 12790627 + ... + 12821893.

It is an arithmetic number, because the mean of its divisors is an integer number (17927257656).

Almost surely, 2^400413331420 is an apocalyptic number.

It is an amenable number.

400413331420 is an abundant number, since it is smaller than the sum of its proper divisors (460095036068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400413331420 is a wasteful number, since it uses less digits than its factorization.

400413331420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46210 (or 46208 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 400413331420 its reverse (24133314004), we get a palindrome (424546645424).

The spelling of 400413331420 in words is "four hundred billion, four hundred thirteen million, three hundred thirty-one thousand, four hundred twenty".