406255344 has 40 divisors (see below), whose sum is σ = 1144902912. Its totient is φ = 123107520.

The previous prime is 406255337. The next prime is 406255349. The reversal of 406255344 is 443552604.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406255349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384184 + ... + 385239.

Almost surely, 2^406255344 is an apocalyptic number.

406255344 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

406255344 is an abundant number, since it is smaller than the sum of its proper divisors (738647568).

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

406255344 is a wasteful number, since it uses less digits than its factorization.

406255344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769445 (or 769439 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

The square root of 406255344 is about 20155.7769386347. The cubic root of 406255344 is about 740.6272645910.

The spelling of 406255344 in words is "four hundred six million, two hundred fifty-five thousand, three hundred forty-four".