1972520 has 32 divisors (see below), whose sum is σ = 4842720. Its totient is φ = 717120.

The previous prime is 1972511. The next prime is 1972541. The reversal of 1972520 is 252791.

It is a self number, because there is not a number n which added to its sum of digits gives 1972520.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1802 + ... + 2681.

It is an arithmetic number, because the mean of its divisors is an integer number (151335).

2^1972520 is an apocalyptic number.

1972520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1972520 is an abundant number, since it is smaller than the sum of its proper divisors (2870200).

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

1972520 is a wasteful number, since it uses less digits than its factorization.

1972520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4505 (or 4501 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1972520 is about 1404.4643106893. The cubic root of 1972520 is about 125.4123979273.

The spelling of 1972520 in words is "one million, nine hundred seventy-two thousand, five hundred twenty".