1493631 has 12 divisors (see below), whose sum is σ = 2190552. Its totient is φ = 980496.

The previous prime is 1493623. The next prime is 1493633. The reversal of 1493631 is 1363941.

It is not a de Polignac number, because 1493631 - 2³ = 1493623 is a prime.

It is a super-2 number, since 2×1493631² = 4461867128322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1493595 and 1493604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1493633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 636 + ... + 1841.

It is an arithmetic number, because the mean of its divisors is an integer number (182546).

2^1493631 is an apocalyptic number.

1493631 is a deficient number, since it is larger than the sum of its proper divisors (696921).

1493631 is a wasteful number, since it uses less digits than its factorization.

1493631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2550 (or 2547 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 1493631 is about 1222.1419721129. The cubic root of 1493631 is about 114.3091791849.

The spelling of 1493631 in words is "one million, four hundred ninety-three thousand, six hundred thirty-one".