1244204631 has 20 divisors (see below), whose sum is σ = 1865517984. Its totient is φ = 826394400.

The previous prime is 1244204579. The next prime is 1244204669. The reversal of 1244204631 is 1364024421.

It is a happy number.

1244204631 is a `hidden beast` number, since 1 + 2 + 4 + 4 + 20 + 4 + 631 = 666.

It is not a de Polignac number, because 1244204631 - 2⁷ = 1244204503 is a prime.

It is a super-2 number, since 2×1244204631² = 3096090327603692322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1244204595 and 1244204604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244204681) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6390 + ... + 50291.

Almost surely, 2^1244204631 is an apocalyptic number.

1244204631 is a deficient number, since it is larger than the sum of its proper divisors (621313353).

1244204631 is an equidigital number, since it uses as much as digits as its factorization.

1244204631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56964 (or 56955 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 1244204631 is about 35273.2849476768. The cubic root of 1244204631 is about 1075.5499997179.

The spelling of 1244204631 in words is "one billion, two hundred forty-four million, two hundred four thousand, six hundred thirty-one".