320153632 has 12 divisors (see below), whose sum is σ = 630302526. Its totient is φ = 160076800.

The previous prime is 320153623. The next prime is 320153653. The reversal of 320153632 is 236351023.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 283720336 + 36433296 = 16844^2 + 6036^2 .

It is a junction number, because it is equal to n+sod(n) for n = 320153597 and 320153606.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5002369 + ... + 5002432.

Almost surely, 2^320153632 is an apocalyptic number.

320153632 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

320153632 is a deficient number, since it is larger than the sum of its proper divisors (310148894).

320153632 is a wasteful number, since it uses less digits than its factorization.

320153632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10004811 (or 10004803 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 320153632 is about 17892.8374496612. The cubic root of 320153632 is about 684.0998224182.

The spelling of 320153632 in words is "three hundred twenty million, one hundred fifty-three thousand, six hundred thirty-two".