1972550 has 12 divisors (see below), whose sum is σ = 3669036. Its totient is φ = 789000.

The previous prime is 1972541. The next prime is 1972567. The reversal of 1972550 is 552791.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19676 + ... + 19775.

It is an arithmetic number, because the mean of its divisors is an integer number (305753).

2^1972550 is an apocalyptic number.

1972550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1972550 is a deficient number, since it is larger than the sum of its proper divisors (1696486).

1972550 is a wasteful number, since it uses less digits than its factorization.

1972550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39463 (or 39458 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 1972550 is about 1404.4749908774. The cubic root of 1972550 is about 125.4130337220.

The spelling of 1972550 in words is "one million, nine hundred seventy-two thousand, five hundred fifty".