401367663240 has 64 divisors (see below), whose sum is σ = 1204147200960. Its totient is φ = 107027447040.

The previous prime is 401367663233. The next prime is 401367663311. The reversal of 401367663240 is 42366763104.

It is a super-2 number, since 2×401367663240² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401367663192 and 401367663201.

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, 4851502 + ... + 4933538.

It is an arithmetic number, because the mean of its divisors is an integer number (18814800015).

Almost surely, 2^401367663240 is an apocalyptic number.

401367663240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401367663240 is an abundant number, since it is smaller than the sum of its proper divisors (802779537720).

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

401367663240 is a wasteful number, since it uses less digits than its factorization.

401367663240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122822 (or 122818 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 42.

The spelling of 401367663240 in words is "four hundred one billion, three hundred sixty-seven million, six hundred sixty-three thousand, two hundred forty".