1930491930 has 32 divisors (see below), whose sum is σ = 4636243008. Its totient is φ = 514457600.

The previous prime is 1930491919. The next prime is 1930491947. The reversal of 1930491930 is 391940391.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26650 + ... + 67610.

It is an arithmetic number, because the mean of its divisors is an integer number (144882594).

Almost surely, 2^1930491930 is an apocalyptic number.

1930491930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1930491930 is an abundant number, since it is smaller than the sum of its proper divisors (2705751078).

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

1930491930 is a wasteful number, since it uses less digits than its factorization.

1930491930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42542.

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 1930491930 is about 43937.3637124487. The cubic root of 1930491930 is about 1245.1528400610.

The spelling of 1930491930 in words is "one billion, nine hundred thirty million, four hundred ninety-one thousand, nine hundred thirty".