1072520 has 16 divisors (see below), whose sum is σ = 2413260. Its totient is φ = 428992.

The previous prime is 1072517. The next prime is 1072537. The reversal of 1072520 is 252701.

It can be written as a sum of positive squares in 2 ways, for example, as 1069156 + 3364 = 1034^2 + 58^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13367 + ... + 13446.

2^1072520 is an apocalyptic number.

1072520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1072520 is an abundant number, since it is smaller than the sum of its proper divisors (1340740).

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

1072520 is a wasteful number, since it uses less digits than its factorization.

1072520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26824 (or 26820 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 1072520 is about 1035.6254149064. The cubic root of 1072520 is about 102.3611445193.

Subtracting from 1072520 its product of nonzero digits (140), we obtain a triangular number (1072380 = T₁₄₆₄).

The spelling of 1072520 in words is "one million, seventy-two thousand, five hundred twenty".