42446631 has 4 divisors (see below), whose sum is σ = 56595512. Its totient is φ = 28297752.

The previous prime is 42446623. The next prime is 42446641. The reversal of 42446631 is 13664424.

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

It is not a de Polignac number, because 42446631 - 2³ = 42446623 is a prime.

It is a super-2 number, since 2×42446631² = 3603432966500322, 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 (42446641) 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, 7074436 + ... + 7074441.

It is an arithmetic number, because the mean of its divisors is an integer number (14148878).

Almost surely, 2^42446631 is an apocalyptic number.

42446631 is a deficient number, since it is larger than the sum of its proper divisors (14148881).

42446631 is a wasteful number, since it uses less digits than its factorization.

42446631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14148880.

The product of its digits is 13824, while the sum is 30.

The square root of 42446631 is about 6515.1079039414. The cubic root of 42446631 is about 348.8304663957.

The spelling of 42446631 in words is "forty-two million, four hundred forty-six thousand, six hundred thirty-one".