2072156460 has 72 divisors (see below), whose sum is σ = 6377469168. Its totient is φ = 502339200.

The previous prime is 2072156453. The next prime is 2072156461. The reversal of 2072156460 is 646512702.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (2072156461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135451 + ... + 149970.

Almost surely, 2^2072156460 is an apocalyptic number.

2072156460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2072156460 is an abundant number, since it is smaller than the sum of its proper divisors (4305312708).

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

2072156460 is a wasteful number, since it uses less digits than its factorization.

2072156460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285455 (or 285442 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 2072156460 is about 45520.9452889546. The cubic root of 2072156460 is about 1274.8943057329.

The spelling of 2072156460 in words is "two billion, seventy-two million, one hundred fifty-six thousand, four hundred sixty".