405379312 has 40 divisors (see below), whose sum is σ = 873138560. Its totient is φ = 181059840.

The previous prime is 405379291. The next prime is 405379333. The reversal of 405379312 is 213973504.

It is an interprime number because it is at equal distance from previous prime (405379291) and next prime (405379333).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24987 + ... + 37882.

It is an arithmetic number, because the mean of its divisors is an integer number (21828464).

Almost surely, 2^405379312 is an apocalyptic number.

It is an amenable number.

405379312 is an abundant number, since it is smaller than the sum of its proper divisors (467759248).

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

405379312 is a wasteful number, since it uses less digits than its factorization.

405379312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62921 (or 62915 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 405379312 is about 20134.0336743535. The cubic root of 405379312 is about 740.0945289517.

The spelling of 405379312 in words is "four hundred five million, three hundred seventy-nine thousand, three hundred twelve".