3212773920 has 72 divisors (see below), whose sum is σ = 10963595916. Its totient is φ = 856739328.

The previous prime is 3212773919. The next prime is 3212773969. The reversal of 3212773920 is 293772123.

It can be written as a sum of positive squares in 2 ways, for example, as 3185022096 + 27751824 = 56436^2 + 5268^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×3212773920² = 20643832522064332800, which contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1114107 + ... + 1116986.

Almost surely, 2^3212773920 is an apocalyptic number.

3212773920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3212773920 is an abundant number, since it is smaller than the sum of its proper divisors (7750821996).

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

3212773920 is a wasteful number, since it uses less digits than its factorization.

3212773920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2231114 (or 2231103 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 3212773920 is about 56681.3366109163. The cubic root of 3212773920 is about 1475.5708096209.

The spelling of 3212773920 in words is "three billion, two hundred twelve million, seven hundred seventy-three thousand, nine hundred twenty".