2021732372 has 36 divisors (see below), whose sum is σ = 3942252468. Its totient is φ = 906364800.

The previous prime is 2021732359. The next prime is 2021732393. The reversal of 2021732372 is 2732371202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1714291216 + 307441156 = 41404^2 + 17534^2 .

It is a super-3 number, since 3×2021732372³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6722 + ... + 63942.

It is an arithmetic number, because the mean of its divisors is an integer number (109507013).

Almost surely, 2^2021732372 is an apocalyptic number.

2021732372 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2021732372 is a deficient number, since it is larger than the sum of its proper divisors (1920520096).

2021732372 is a wasteful number, since it uses less digits than its factorization.

2021732372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57320 (or 57307 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 2021732372 is about 44963.6783637638. The cubic root of 2021732372 is about 1264.4681317953.

The spelling of 2021732372 in words is "two billion, twenty-one million, seven hundred thirty-two thousand, three hundred seventy-two".