406072252 has 6 divisors (see below), whose sum is σ = 710626448. Its totient is φ = 203036124.

The previous prime is 406072231. The next prime is 406072267. The reversal of 406072252 is 252270604.

It is a self number, because there is not a number n which added to its sum of digits gives 406072252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50759028 + ... + 50759035.

Almost surely, 2^406072252 is an apocalyptic number.

It is an amenable number.

406072252 is a deficient number, since it is larger than the sum of its proper divisors (304554196).

406072252 is a wasteful number, since it uses less digits than its factorization.

406072252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101518067 (or 101518065 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 406072252 is about 20151.2345031266. The cubic root of 406072252 is about 740.5159853955.

The spelling of 406072252 in words is "four hundred six million, seventy-two thousand, two hundred fifty-two".