412821972 has 36 divisors (see below), whose sum is σ = 1049368320. Its totient is φ = 136836432.

The previous prime is 412821919. The next prime is 412822013. The reversal of 412821972 is 279128214.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent 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, 25588 + ... + 38475.

It is an arithmetic number, because the mean of its divisors is an integer number (29149120).

Almost surely, 2^412821972 is an apocalyptic number.

It is an amenable number.

412821972 is an abundant number, since it is smaller than the sum of its proper divisors (636546348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

412821972 is a wasteful number, since it uses less digits than its factorization.

412821972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64252 (or 64247 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 412821972 is about 20318.0208681850. The cubic root of 412821972 is about 744.5964043709.

The spelling of 412821972 in words is "four hundred twelve million, eight hundred twenty-one thousand, nine hundred seventy-two".