1939873936 has 225 divisors, whose sum is σ = 5207728905. Its totient is φ = 697656960.

The previous prime is 1939873931. The next prime is 1939873987. The reversal of 1939873936 is 6393789391.

The square root of 1939873936 is 44044.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 286963600 + 1652910336 = 16940^2 + 40656^2 .

It is a super-2 number, since 2×1939873936² = 7526221775144264192, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1939873931) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 149221066 + ... + 149221078.

Almost surely, 2^1939873936 is an apocalyptic number.

1939873936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1939873936 is the 44044-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1939873936

1939873936 is an abundant number, since it is smaller than the sum of its proper divisors (3267854969).

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

1939873936 is an equidigital number, since it uses as much as digits as its factorization.

1939873936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 33 counting only the distinct ones).

The product of its digits is 6613488, while the sum is 58.

The cubic root of 1939873936 is about 1247.1666890783.

The spelling of 1939873936 in words is "one billion, nine hundred thirty-nine million, eight hundred seventy-three thousand, nine hundred thirty-six".