46644431 has 4 divisors (see below), whose sum is σ = 46689864. Its totient is φ = 46599000.

The previous prime is 46644407. The next prime is 46644439. The reversal of 46644431 is 13444664.

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

It is a cyclic number.

It is not a de Polignac number, because 46644431 - 2²² = 42450127 is a prime.

It is a super-2 number, since 2×46644431² = 4351405886627522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46644439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21140 + ... + 23241.

It is an arithmetic number, because the mean of its divisors is an integer number (11672466).

Almost surely, 2^46644431 is an apocalyptic number.

46644431 is a deficient number, since it is larger than the sum of its proper divisors (45433).

46644431 is a wasteful number, since it uses less digits than its factorization.

46644431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45432.

The product of its digits is 27648, while the sum is 32.

The square root of 46644431 is about 6829.6728325740. The cubic root of 46644431 is about 359.9702418818.

The spelling of 46644431 in words is "forty-six million, six hundred forty-four thousand, four hundred thirty-one".