648236412 has 48 divisors (see below), whose sum is σ = 1734835200. Its totient is φ = 209107440.

The previous prime is 648236399. The next prime is 648236467. The reversal of 648236412 is 214632846.

648236412 is a `hidden beast` number, since 6 + 4 + 8 + 2 + 3 + 641 + 2 = 666.

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 15 ways as a sum of consecutive naturals, for example, 93462 + ... + 100157.

It is an arithmetic number, because the mean of its divisors is an integer number (36142400).

Almost surely, 2^648236412 is an apocalyptic number.

648236412 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

648236412 is an abundant number, since it is smaller than the sum of its proper divisors (1086598788).

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

648236412 is a wasteful number, since it uses less digits than its factorization.

648236412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193663 (or 193655 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 648236412 is about 25460.4872694927. The cubic root of 648236412 is about 865.4549655328.

The spelling of 648236412 in words is "six hundred forty-eight million, two hundred thirty-six thousand, four hundred twelve".