2291947074 has 24 divisors (see below), whose sum is σ = 4985217900. Its totient is φ = 761008128.

The previous prime is 2291947051. The next prime is 2291947081. The reversal of 2291947074 is 4707491922.

It is a happy number.

2291947074 is a `hidden beast` number, since 22 + 91 + 9 + 470 + 74 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2099930625 + 192016449 = 45825^2 + 13857^2 .

It is a super-2 number, since 2×2291947074² = 10506042780034322952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243099 + ... + 252350.

Almost surely, 2^2291947074 is an apocalyptic number.

2291947074 is an abundant number, since it is smaller than the sum of its proper divisors (2693270826).

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

2291947074 is a wasteful number, since it uses less digits than its factorization.

2291947074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495714 (or 495711 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 2291947074 is about 47874.2840573099. The cubic root of 2291947074 is about 1318.4637534078.

The spelling of 2291947074 in words is "two billion, two hundred ninety-one million, nine hundred forty-seven thousand, seventy-four".