406225928 has 32 divisors (see below), whose sum is σ = 809287200. Its totient is φ = 190616832.

The previous prime is 406225913. The next prime is 406225933. The reversal of 406225928 is 829522604.

It is a super-2 number, since 2×406225928² = 330039009158922368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 406225891 and 406225900.

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, 3776 + ... + 28752.

It is an arithmetic number, because the mean of its divisors is an integer number (25290225).

Almost surely, 2^406225928 is an apocalyptic number.

It is an amenable number.

406225928 is a deficient number, since it is larger than the sum of its proper divisors (403061272).

406225928 is a wasteful number, since it uses less digits than its factorization.

406225928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25109 (or 25105 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 406225928 is about 20155.0472090740. The cubic root of 406225928 is about 740.6093884631.

The spelling of 406225928 in words is "four hundred six million, two hundred twenty-five thousand, nine hundred twenty-eight".