2072522640 has 80 divisors (see below), whose sum is σ = 6704178048. Its totient is φ = 528642048.

The previous prime is 2072522609. The next prime is 2072522659. The reversal of 2072522640 is 462252702.

2072522640 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2072522598 and 2072522607.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182209 + ... + 193248.

Almost surely, 2^2072522640 is an apocalyptic number.

2072522640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2072522640 is an abundant number, since it is smaller than the sum of its proper divisors (4631655408).

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

2072522640 is a wasteful number, since it uses less digits than its factorization.

2072522640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375496 (or 375490 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 2072522640 is about 45524.9672158037. The cubic root of 2072522640 is about 1274.9693987273.

It can be divided in two parts, 20725 and 22640, that added together give a triangular number (43365 = T₂₉₄).

The spelling of 2072522640 in words is "two billion, seventy-two million, five hundred twenty-two thousand, six hundred forty".