405440402130 has 32 divisors (see below), whose sum is σ = 1081174406400. Its totient is φ = 108117440496.

The previous prime is 405440402117. The next prime is 405440402141. The reversal of 405440402130 is 31204044504.

It is a happy number.

405440402130 is a `hidden beast` number, since 4 + 0 + 5 + 440 + 4 + 0 + 213 + 0 = 666.

It is a super-2 number, since 2×405440402130² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 405440402094 and 405440402103.

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, 750815290 + ... + 750815829.

It is an arithmetic number, because the mean of its divisors is an integer number (33786700200).

Almost surely, 2^405440402130 is an apocalyptic number.

405440402130 is an abundant number, since it is smaller than the sum of its proper divisors (675734004270).

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

405440402130 is a wasteful number, since it uses less digits than its factorization.

405440402130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501631135 (or 1501631129 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 405440402130 its reverse (31204044504), we get a palindrome (436644446634).

The spelling of 405440402130 in words is "four hundred five billion, four hundred forty million, four hundred two thousand, one hundred thirty".