1936784940 has 48 divisors (see below), whose sum is σ = 5431412448. Its totient is φ = 515674624.

The previous prime is 1936784939. The next prime is 1936784947. The reversal of 1936784940 is 494876391.

It is a super-3 number, since 3×1936784940³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1936784947) 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, 14464 + ... + 63896.

It is an arithmetic number, because the mean of its divisors is an integer number (113154426).

Almost surely, 2^1936784940 is an apocalyptic number.

1936784940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1936784940 is an abundant number, since it is smaller than the sum of its proper divisors (3494627508).

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

1936784940 is a wasteful number, since it uses less digits than its factorization.

1936784940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50098 (or 50096 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The square root of 1936784940 is about 44008.9188687929. The cubic root of 1936784940 is about 1246.5043540132.

The spelling of 1936784940 in words is "one billion, nine hundred thirty-six million, seven hundred eighty-four thousand, nine hundred forty".