2078090988 has 12 divisors (see below), whose sum is σ = 4848879000. Its totient is φ = 692696992.

The previous prime is 2078090953. The next prime is 2078091007. The reversal of 2078090988 is 8890908702.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2078090988² = 8636924308813632288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2078090988.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86587113 + ... + 86587136.

It is an arithmetic number, because the mean of its divisors is an integer number (404073250).

Almost surely, 2^2078090988 is an apocalyptic number.

It is an amenable number.

2078090988 is an abundant number, since it is smaller than the sum of its proper divisors (2770788012).

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

2078090988 is a wasteful number, since it uses less digits than its factorization.

2078090988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173174256 (or 173174254 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 51.

The square root of 2078090988 is about 45586.0832711037. The cubic root of 2078090988 is about 1276.1102185299.

The spelling of 2078090988 in words is "two billion, seventy-eight million, ninety thousand, nine hundred eighty-eight".