402449425 has 12 divisors (see below), whose sum is σ = 570328576. Its totient is φ = 275965200.

The previous prime is 402449417. The next prime is 402449491. The reversal of 402449425 is 524944204.

It is not a de Polignac number, because 402449425 - 2³ = 402449417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1149681 + ... + 1150030.

Almost surely, 2^402449425 is an apocalyptic number.

It is an amenable number.

402449425 is a deficient number, since it is larger than the sum of its proper divisors (167879151).

402449425 is a wasteful number, since it uses less digits than its factorization.

402449425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299728 (or 2299723 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 402449425 is about 20061.1421658888. The cubic root of 402449425 is about 738.3072000742.

The spelling of 402449425 in words is "four hundred two million, four hundred forty-nine thousand, four hundred twenty-five".