404349451 has 6 divisors (see below), whose sum is σ = 444450356. Its totient is φ = 367590300.

The previous prime is 404349401. The next prime is 404349457. The reversal of 404349451 is 154943404.

It is not a de Polignac number, because 404349451 - 2¹⁷ = 404218379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404349457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1670745 + ... + 1670986.

Almost surely, 2^404349451 is an apocalyptic number.

404349451 is a deficient number, since it is larger than the sum of its proper divisors (40100905).

404349451 is a wasteful number, since it uses less digits than its factorization.

404349451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3341753 (or 3341742 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 404349451 is about 20108.4422817880. The cubic root of 404349451 is about 739.4672638775.

The spelling of 404349451 in words is "four hundred four million, three hundred forty-nine thousand, four hundred fifty-one".