440986957 has 4 divisors (see below), whose sum is σ = 441183580. Its totient is φ = 440790336.

The previous prime is 440986951. The next prime is 440986969. The reversal of 440986957 is 759689044.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 101727396 + 339259561 = 10086^2 + 18419^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440986957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440986951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94908 + ... + 99445.

It is an arithmetic number, because the mean of its divisors is an integer number (110295895).

Almost surely, 2^440986957 is an apocalyptic number.

It is an amenable number.

440986957 is a deficient number, since it is larger than the sum of its proper divisors (196623).

440986957 is a wasteful number, since it uses less digits than its factorization.

440986957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196622.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The square root of 440986957 is about 20999.6894500847. The cubic root of 440986957 is about 761.1587569528.

The spelling of 440986957 in words is "four hundred forty million, nine hundred eighty-six thousand, nine hundred fifty-seven".