1164472638 has 16 divisors (see below), whose sum is σ = 2661651840. Its totient is φ = 332706456.

The previous prime is 1164472619. The next prime is 1164472657. The reversal of 1164472638 is 8362744611.

It is an interprime number because it is at equal distance from previous prime (1164472619) and next prime (1164472657).

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 27725539 = 1164472638 / (1 + 1 + 6 + 4 + 4 + 7 + 2 + 6 + 3 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 1164472638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13862728 + ... + 13862811.

It is an arithmetic number, because the mean of its divisors is an integer number (166353240).

Almost surely, 2^1164472638 is an apocalyptic number.

1164472638 is an abundant number, since it is smaller than the sum of its proper divisors (1497179202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1164472638 is a wasteful number, since it uses less digits than its factorization.

1164472638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27725551.

The product of its digits is 193536, while the sum is 42.

The square root of 1164472638 is about 34124.3701480335. The cubic root of 1164472638 is about 1052.0662676863.

The spelling of 1164472638 in words is "one billion, one hundred sixty-four million, four hundred seventy-two thousand, six hundred thirty-eight".