1900136930 has 16 divisors (see below), whose sum is σ = 3420930240. Its totient is φ = 759902832.

The previous prime is 1900136911. The next prime is 1900136939. The reversal of 1900136930 is 396310091.

It is a super-2 number, since 2×1900136930² = 7221040705499649800, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1900136939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43241 + ... + 75299.

It is an arithmetic number, because the mean of its divisors is an integer number (213808140).

Almost surely, 2^1900136930 is an apocalyptic number.

1900136930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1900136930 is a deficient number, since it is larger than the sum of its proper divisors (1520793310).

1900136930 is a wasteful number, since it uses less digits than its factorization.

1900136930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37993.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 1900136930 is about 43590.5601019303. The cubic root of 1900136930 is about 1238.5920826593.

The spelling of 1900136930 in words is "one billion, nine hundred million, one hundred thirty-six thousand, nine hundred thirty".