406422972 has 36 divisors (see below), whose sum is σ = 1072016400. Its totient is φ = 129583872.

The previous prime is 406422953. The next prime is 406422983. The reversal of 406422972 is 279224604.

406422972 is a `hidden beast` number, since 4 + 0 + 642 + 2 + 9 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244597 + ... + 246252.

Almost surely, 2^406422972 is an apocalyptic number.

It is an amenable number.

406422972 is an abundant number, since it is smaller than the sum of its proper divisors (665593428).

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

406422972 is a wasteful number, since it uses less digits than its factorization.

406422972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490882 (or 490877 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 406422972 is about 20159.9348213232. The cubic root of 406422972 is about 740.7291158014.

The spelling of 406422972 in words is "four hundred six million, four hundred twenty-two thousand, nine hundred seventy-two".