2902191892 has 12 divisors (see below), whose sum is σ = 5079849460. Its totient is φ = 1450806336.

The previous prime is 2902191889. The next prime is 2902191949. The reversal of 2902191892 is 2981912092.

It can be written as a sum of positive squares in 2 ways, for example, as 2215961476 + 686230416 = 47074^2 + 26196^2 .

It is a super-3 number, since 3×2902191892³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

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, 49017 + ... + 90592.

Almost surely, 2^2902191892 is an apocalyptic number.

It is an amenable number.

2902191892 is a deficient number, since it is larger than the sum of its proper divisors (2177657568).

2902191892 is a wasteful number, since it uses less digits than its factorization.

2902191892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144810 (or 144808 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 43.

The square root of 2902191892 is about 53871.9954336202. The cubic root of 2902191892 is about 1426.4023362682.

The spelling of 2902191892 in words is "two billion, nine hundred two million, one hundred ninety-one thousand, eight hundred ninety-two".