1942631 has 4 divisors (see below), whose sum is σ = 1970064. Its totient is φ = 1915200.

The previous prime is 1942627. The next prime is 1942657. The reversal of 1942631 is 1362491.

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 1942631 - 2² = 1942627 is a prime.

It is a super-2 number, since 2×1942631² = 7547630404322, 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 1942631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1932631) 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, 13610 + ... + 13751.

It is an arithmetic number, because the mean of its divisors is an integer number (492516).

2^1942631 is an apocalyptic number.

1942631 is a deficient number, since it is larger than the sum of its proper divisors (27433).

1942631 is an equidigital number, since it uses as much as digits as its factorization.

1942631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27432.

The product of its digits is 1296, while the sum is 26.

The square root of 1942631 is about 1393.7829816725. The cubic root of 1942631 is about 124.7757258495.

It can be divided in two parts, 19426 and 31, that multiplied together give a palindrome (602206).

The spelling of 1942631 in words is "one million, nine hundred forty-two thousand, six hundred thirty-one".