2931225920 has 56 divisors (see below), whose sum is σ = 7977128064. Its totient is φ = 1004990976.

The previous prime is 2931225919. The next prime is 2931225949. The reversal of 2931225920 is 295221392.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 652052 + ... + 656531.

Almost surely, 2^2931225920 is an apocalyptic number.

2931225920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2931225920 is an abundant number, since it is smaller than the sum of its proper divisors (5045902144).

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

2931225920 is a wasteful number, since it uses less digits than its factorization.

2931225920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308607 (or 1308597 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 2931225920 is about 54140.7971865949. The cubic root of 2931225920 is about 1431.1432199915.

The spelling of 2931225920 in words is "two billion, nine hundred thirty-one million, two hundred twenty-five thousand, nine hundred twenty".