1980840374 has 16 divisors (see below), whose sum is σ = 3157251696. Its totient is φ = 928838400.

The previous prime is 1980840371. The next prime is 1980840377. The reversal of 1980840374 is 4730480891.

It is an interprime number because it is at equal distance from previous prime (1980840371) and next prime (1980840377).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980840371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94112 + ... + 113219.

It is an arithmetic number, because the mean of its divisors is an integer number (197328231).

Almost surely, 2^1980840374 is an apocalyptic number.

1980840374 is a deficient number, since it is larger than the sum of its proper divisors (1176411322).

1980840374 is a wasteful number, since it uses less digits than its factorization.

1980840374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207631.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 1980840374 is about 44506.6329213972. The cubic root of 1980840374 is about 1255.8848643395.

The spelling of 1980840374 in words is "one billion, nine hundred eighty million, eight hundred forty thousand, three hundred seventy-four".