400615391241 has 32 divisors (see below), whose sum is σ = 640128720000. Its totient is φ = 246158305344.

The previous prime is 400615391213. The next prime is 400615391257. The reversal of 400615391241 is 142193516004.

It is a happy number.

400615391241 is a `hidden beast` number, since 4 + 0 + 0 + 615 + 39 + 1 + 2 + 4 + 1 = 666.

It is not a de Polignac number, because 400615391241 - 2⁶ = 400615391177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400615391196 and 400615391205.

It is not an unprimeable number, because it can be changed into a prime (400615391941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 634666 + ... + 1097283.

It is an arithmetic number, because the mean of its divisors is an integer number (20004022500).

Almost surely, 2^400615391241 is an apocalyptic number.

It is an amenable number.

400615391241 is a deficient number, since it is larger than the sum of its proper divisors (239513328759).

400615391241 is a wasteful number, since it uses less digits than its factorization.

400615391241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732630 (or 1732624 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 400615391241 in words is "four hundred billion, six hundred fifteen million, three hundred ninety-one thousand, two hundred forty-one".