1936138530 has 32 divisors (see below), whose sum is σ = 4716091584. Its totient is φ = 508597056.

The previous prime is 1936138507. The next prime is 1936138543. The reversal of 1936138530 is 358316391.

It is a Curzon number.

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, 479617 + ... + 483636.

It is an arithmetic number, because the mean of its divisors is an integer number (147377862).

Almost surely, 2^1936138530 is an apocalyptic number.

1936138530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1936138530 is an abundant number, since it is smaller than the sum of its proper divisors (2779953054).

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

1936138530 is a wasteful number, since it uses less digits than its factorization.

1936138530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963330.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 1936138530 is about 44001.5741763860. The cubic root of 1936138530 is about 1246.3656632513.

The spelling of 1936138530 in words is "one billion, nine hundred thirty-six million, one hundred thirty-eight thousand, five hundred thirty".