1204493631 has 8 divisors (see below), whose sum is σ = 1751990784. Its totient is φ = 729996120.

The previous prime is 1204493621. The next prime is 1204493663. The reversal of 1204493631 is 1363944021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1204493631 - 2⁶ = 1204493567 is a prime.

It is a super-2 number, since 2×1204493631² = 2901609814239128322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 36499807 = 1204493631 / (1 + 2 + 0 + 4 + 4 + 9 + 3 + 6 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 1204493592 and 1204493601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204493611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18249871 + ... + 18249936.

It is an arithmetic number, because the mean of its divisors is an integer number (218998848).

Almost surely, 2^1204493631 is an apocalyptic number.

1204493631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1204493631 is a deficient number, since it is larger than the sum of its proper divisors (547497153).

1204493631 is a wasteful number, since it uses less digits than its factorization.

1204493631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36499821.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 1204493631 is about 34705.8155213215. The cubic root of 1204493631 is about 1063.9833601026.

The spelling of 1204493631 in words is "one billion, two hundred four million, four hundred ninety-three thousand, six hundred thirty-one".