1138479190 has 8 divisors (see below), whose sum is σ = 2049262560. Its totient is φ = 455391672.

The previous prime is 1138479169. The next prime is 1138479197. The reversal of 1138479190 is 919748311.

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

It is a super-2 number, since 2×1138479190² = 2592269732126112200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138479197) 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, 56923950 + ... + 56923969.

It is an arithmetic number, because the mean of its divisors is an integer number (256157820).

Almost surely, 2^1138479190 is an apocalyptic number.

1138479190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1138479190 is a deficient number, since it is larger than the sum of its proper divisors (910783370).

1138479190 is a wasteful number, since it uses less digits than its factorization.

1138479190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113847926.

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 1138479190 is about 33741.3572637498. The cubic root of 1138479190 is about 1044.1791864943.

The spelling of 1138479190 in words is "one billion, one hundred thirty-eight million, four hundred seventy-nine thousand, one hundred ninety".