390732012 has 120 divisors (see below), whose sum is σ = 1180040400. Its totient is φ = 111421440.

The previous prime is 390732011. The next prime is 390732019. The reversal of 390732012 is 210237093.

390732012 is a `hidden beast` number, since 390 + 73 + 201 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (390732011) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 57364 + ... + 63812.

It is an arithmetic number, because the mean of its divisors is an integer number (9833670).

Almost surely, 2^390732012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 390732012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (590020200).

390732012 is an abundant number, since it is smaller than the sum of its proper divisors (789308388).

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

390732012 is a wasteful number, since it uses less digits than its factorization.

390732012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6493 (or 6482 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 390732012 is about 19766.9424039228. The cubic root of 390732012 is about 731.0711815222.

The spelling of 390732012 in words is "three hundred ninety million, seven hundred thirty-two thousand, twelve".