409212452 has 24 divisors (see below), whose sum is σ = 802341120. Its totient is φ = 180977760.

The previous prime is 409212413. The next prime is 409212497. The reversal of 409212452 is 254212904.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124052 + ... + 127307.

It is an arithmetic number, because the mean of its divisors is an integer number (33430880).

Almost surely, 2^409212452 is an apocalyptic number.

It is an amenable number.

409212452 is a deficient number, since it is larger than the sum of its proper divisors (393128668).

409212452 is a wasteful number, since it uses less digits than its factorization.

409212452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251411 (or 251409 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 409212452 is about 20229.0002718869. Note that the first 3 decimals coincide. The cubic root of 409212452 is about 742.4199157090.

The spelling of 409212452 in words is "four hundred nine million, two hundred twelve thousand, four hundred fifty-two".