1972633914 has 24 divisors (see below), whose sum is σ = 4322066580. Its totient is φ = 650155968.

The previous prime is 1972633909. The next prime is 1972633919. The reversal of 1972633914 is 4193362791.

1972633914 is a `hidden beast` number, since 1 + 9 + 7 + 2 + 633 + 9 + 1 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (1972633909) and next prime (1972633919).

It can be written as a sum of positive squares in 2 ways, for example, as 1511887689 + 460746225 = 38883^2 + 21465^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1972633914.

It is not an unprimeable number, because it can be changed into a prime (1972633919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 614077 + ... + 617280.

Almost surely, 2^1972633914 is an apocalyptic number.

1972633914 is an abundant number, since it is smaller than the sum of its proper divisors (2349432666).

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

1972633914 is a wasteful number, since it uses less digits than its factorization.

1972633914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231454 (or 1231451 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 1972633914 is about 44414.3435615117. The cubic root of 1972633914 is about 1254.1481209008.

The spelling of 1972633914 in words is "one billion, nine hundred seventy-two million, six hundred thirty-three thousand, nine hundred fourteen".