2291513436 has 48 divisors (see below), whose sum is σ = 6290434080. Its totient is φ = 718905600.

The previous prime is 2291513417. The next prime is 2291513447. The reversal of 2291513436 is 6343151922.

2291513436 is a `hidden beast` number, since 22 + 91 + 513 + 4 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2291513436.

It is a congruent number.

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, 622215 + ... + 625886.

It is an arithmetic number, because the mean of its divisors is an integer number (131050710).

Almost surely, 2^2291513436 is an apocalyptic number.

It is an amenable number.

2291513436 is an abundant number, since it is smaller than the sum of its proper divisors (3998920644).

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

2291513436 is a wasteful number, since it uses less digits than its factorization.

2291513436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248131 (or 1248123 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 2291513436 is about 47869.7549189465. The cubic root of 2291513436 is about 1318.3805967397.

The spelling of 2291513436 in words is "two billion, two hundred ninety-one million, five hundred thirteen thousand, four hundred thirty-six".