442062631 has 4 divisors (see below), whose sum is σ = 457306200. Its totient is φ = 426819064.

The previous prime is 442062613. The next prime is 442062637. The reversal of 442062631 is 136260244.

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 442062631 - 2⁷ = 442062503 is a prime.

It is a super-2 number, since 2×442062631² = 390838739453284322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442062631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442062637) 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, 7621741 + ... + 7621798.

It is an arithmetic number, because the mean of its divisors is an integer number (114326550).

Almost surely, 2^442062631 is an apocalyptic number.

442062631 is a deficient number, since it is larger than the sum of its proper divisors (15243569).

442062631 is a wasteful number, since it uses less digits than its factorization.

442062631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15243568.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 442062631 is about 21025.2855153028. The cubic root of 442062631 is about 761.7771379544. Note that the first 3 decimals are identical.

The spelling of 442062631 in words is "four hundred forty-two million, sixty-two thousand, six hundred thirty-one".