1942690680 has 96 divisors (see below), whose sum is σ = 7215717600. Its totient is φ = 444043008.

The previous prime is 1942690667. The next prime is 1942690681. The reversal of 1942690680 is 860962491.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1942690681) 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, 382935 + ... + 387974.

It is an arithmetic number, because the mean of its divisors is an integer number (75163725).

Almost surely, 2^1942690680 is an apocalyptic number.

1942690680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1942690680 is an abundant number, since it is smaller than the sum of its proper divisors (5273026920).

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

1942690680 is a wasteful number, since it uses less digits than its factorization.

1942690680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770933 (or 770926 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 1942690680 is about 44075.9648788316. The cubic root of 1942690680 is about 1247.7700359071.

The spelling of 1942690680 in words is "one billion, nine hundred forty-two million, six hundred ninety thousand, six hundred eighty".