1939797741 has 24 divisors (see below), whose sum is σ = 3018404800. Its totient is φ = 1107648528.

The previous prime is 1939797737. The next prime is 1939797763. The reversal of 1939797741 is 1477979391.

It is not a de Polignac number, because 1939797741 - 2² = 1939797737 is a prime.

It is a super-3 number, since 3×1939797741³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1939797241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1412131 + ... + 1413503.

Almost surely, 2^1939797741 is an apocalyptic number.

It is an amenable number.

1939797741 is a deficient number, since it is larger than the sum of its proper divisors (1078607059).

1939797741 is an frugal number, since it uses more digits than its factorization.

1939797741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770 (or 1383 counting only the distinct ones).

The product of its digits is 3000564, while the sum is 57.

The square root of 1939797741 is about 44043.1350042206. The cubic root of 1939797741 is about 1247.1503599914.

The spelling of 1939797741 in words is "one billion, nine hundred thirty-nine million, seven hundred ninety-seven thousand, seven hundred forty-one".