2097881994 has 32 divisors (see below), whose sum is σ = 4520496960. Its totient is φ = 645219072.

The previous prime is 2097881983. The next prime is 2097882001. The reversal of 2097881994 is 4991887902.

It is a super-2 number, since 2×2097881994² = 8802217721498832072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236589 + ... + 245295.

It is an arithmetic number, because the mean of its divisors is an integer number (141265530).

Almost surely, 2^2097881994 is an apocalyptic number.

2097881994 is an abundant number, since it is smaller than the sum of its proper divisors (2422614966).

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

2097881994 is a wasteful number, since it uses less digits than its factorization.

2097881994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11814.

The product of its (nonzero) digits is 2612736, while the sum is 57.

The square root of 2097881994 is about 45802.6417797052. The cubic root of 2097881994 is about 1280.1485004304.

The spelling of 2097881994 in words is "two billion, ninety-seven million, eight hundred eighty-one thousand, nine hundred ninety-four".