1972440969 has 8 divisors (see below), whose sum is σ = 2744265792. Its totient is φ = 1257788400.

The previous prime is 1972440961. The next prime is 1972440983. The reversal of 1972440969 is 9690442791.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1972440969 - 2³ = 1972440961 is a prime.

It is a super-2 number, since 2×1972440969² = 7781046752379317922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1972440961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14292982 + ... + 14293119.

It is an arithmetic number, because the mean of its divisors is an integer number (343033224).

Almost surely, 2^1972440969 is an apocalyptic number.

It is an amenable number.

1972440969 is a deficient number, since it is larger than the sum of its proper divisors (771824823).

1972440969 is a wasteful number, since it uses less digits than its factorization.

1972440969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28586127.

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 1972440969 is about 44412.1714060459. The cubic root of 1972440969 is about 1254.1072298029.

The spelling of 1972440969 in words is "one billion, nine hundred seventy-two million, four hundred forty thousand, nine hundred sixty-nine".