2312278092 has 18 divisors (see below), whose sum is σ = 5844925268. Its totient is φ = 770759352.

The previous prime is 2312278081. The next prime is 2312278121. The reversal of 2312278092 is 2908722132.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 64229947 = 2312278092 / (2 + 3 + 1 + 2 + 2 + 7 + 8 + 0 + 9 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32114938 + ... + 32115009.

Almost surely, 2^2312278092 is an apocalyptic number.

It is an amenable number.

2312278092 is an abundant number, since it is smaller than the sum of its proper divisors (3532647176).

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

2312278092 is a wasteful number, since it uses less digits than its factorization.

2312278092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64229957 (or 64229952 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 2312278092 is about 48086.1528093068. The cubic root of 2312278092 is about 1322.3508177773.

The spelling of 2312278092 in words is "two billion, three hundred twelve million, two hundred seventy-eight thousand, ninety-two".