1913479930 has 32 divisors (see below), whose sum is σ = 3659463360. Its totient is φ = 718323840.

The previous prime is 1913479877. The next prime is 1913479937. The reversal of 1913479930 is 399743191.

It is a super-2 number, since 2×1913479930² = 7322810885025609800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1913479937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26731 + ... + 67390.

It is an arithmetic number, because the mean of its divisors is an integer number (114358230).

Almost surely, 2^1913479930 is an apocalyptic number.

1913479930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1913479930 is a deficient number, since it is larger than the sum of its proper divisors (1745983430).

1913479930 is a wasteful number, since it uses less digits than its factorization.

1913479930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94254.

The product of its (nonzero) digits is 183708, while the sum is 46.

The square root of 1913479930 is about 43743.3415504577. The cubic root of 1913479930 is about 1241.4845058857.

The spelling of 1913479930 in words is "one billion, nine hundred thirteen million, four hundred seventy-nine thousand, nine hundred thirty".