405472139284 has 12 divisors (see below), whose sum is σ = 709580847808. Its totient is φ = 202734754200.

The previous prime is 405472139273. The next prime is 405472139329. The reversal of 405472139284 is 482931274504.

It is a super-3 number, since 3×405472139284³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 780439 + ... + 1191649.

Almost surely, 2^405472139284 is an apocalyptic number.

It is an amenable number.

405472139284 is a deficient number, since it is larger than the sum of its proper divisors (304108708524).

405472139284 is a wasteful number, since it uses less digits than its factorization.

405472139284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657726 (or 657724 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 405472139284 in words is "four hundred five billion, four hundred seventy-two million, one hundred thirty-nine thousand, two hundred eighty-four".