408428774 has 32 divisors (see below), whose sum is σ = 702989280. Its totient is φ = 176297472.

The previous prime is 408428771. The next prime is 408428821. The reversal of 408428774 is 477824804.

It is a super-2 number, since 2×408428774² = 333628126862286152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408428771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69212 + ... + 74880.

It is an arithmetic number, because the mean of its divisors is an integer number (21968415).

Almost surely, 2^408428774 is an apocalyptic number.

408428774 is a deficient number, since it is larger than the sum of its proper divisors (294560506).

408428774 is a wasteful number, since it uses less digits than its factorization.

408428774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5864.

The product of its (nonzero) digits is 401408, while the sum is 44.

The square root of 408428774 is about 20209.6208277147. The cubic root of 408428774 is about 741.9456796012.

The spelling of 408428774 in words is "four hundred eight million, four hundred twenty-eight thousand, seven hundred seventy-four".