406923392 has 24 divisors (see below), whose sum is σ = 811122615. Its totient is φ = 203347584.

The previous prime is 406923379. The next prime is 406923443. The reversal of 406923392 is 293329604.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 203461696 + 203461696 = 14264^2 + 14264^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=14264.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 227333 + ... + 229115.

Almost surely, 2^406923392 is an apocalyptic number.

It is an amenable number.

406923392 is a deficient number, since it is larger than the sum of its proper divisors (404199223).

406923392 is an frugal number, since it uses more digits than its factorization.

406923392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3580 (or 1785 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 406923392 is about 20172.3422536898. The cubic root of 406923392 is about 741.0330058032.

The spelling of 406923392 in words is "four hundred six million, nine hundred twenty-three thousand, three hundred ninety-two".