408428451 has 24 divisors (see below), whose sum is σ = 626071680. Its totient is φ = 255687936.

The previous prime is 408428407. The next prime is 408428453. The reversal of 408428451 is 154824804.

It is not a de Polignac number, because 408428451 - 2⁷ = 408428323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (408428453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70501 + ... + 76073.

It is an arithmetic number, because the mean of its divisors is an integer number (26086320).

Almost surely, 2^408428451 is an apocalyptic number.

408428451 is a deficient number, since it is larger than the sum of its proper divisors (217643229).

408428451 is a wasteful number, since it uses less digits than its factorization.

408428451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6075 (or 6072 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 36.

The square root of 408428451 is about 20209.6128364697. The cubic root of 408428451 is about 741.9454840155.

The spelling of 408428451 in words is "four hundred eight million, four hundred twenty-eight thousand, four hundred fifty-one".