1939364394 has 16 divisors (see below), whose sum is σ = 4231340640. Its totient is φ = 587686160.

The previous prime is 1939364389. The next prime is 1939364419. The reversal of 1939364394 is 4934639391.

It is a super-2 number, since 2×1939364394² = 7522268505429974472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14692089 + ... + 14692220.

It is an arithmetic number, because the mean of its divisors is an integer number (264458790).

Almost surely, 2^1939364394 is an apocalyptic number.

1939364394 is an abundant number, since it is smaller than the sum of its proper divisors (2291976246).

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

1939364394 is a wasteful number, since it uses less digits than its factorization.

1939364394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29384325.

The product of its digits is 1889568, while the sum is 51.

The square root of 1939364394 is about 44038.2151545677. The cubic root of 1939364394 is about 1247.0574827624.

The spelling of 1939364394 in words is "one billion, nine hundred thirty-nine million, three hundred sixty-four thousand, three hundred ninety-four".