39980469 has 8 divisors (see below), whose sum is σ = 53337600. Its totient is φ = 26638496.

The previous prime is 39980459. The next prime is 39980543. The reversal of 39980469 is 96408993.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 39980469 - 2⁷ = 39980341 is a prime.

It is a super-2 number, since 2×39980469² = 3196875802919922, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39980449) 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, 5932 + ... + 10730.

It is an arithmetic number, because the mean of its divisors is an integer number (6667200).

Almost surely, 2^39980469 is an apocalyptic number.

It is an amenable number.

39980469 is a deficient number, since it is larger than the sum of its proper divisors (13357131).

39980469 is a wasteful number, since it uses less digits than its factorization.

39980469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7579.

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 39980469 is about 6323.0110706846. The cubic root of 39980469 is about 341.9395177063.

The spelling of 39980469 in words is "thirty-nine million, nine hundred eighty thousand, four hundred sixty-nine".