2291392 has 14 divisors (see below), whose sum is σ = 4547108. Its totient is φ = 1145664.

The previous prime is 2291389. The next prime is 2291417. The reversal of 2291392 is 2931922.

It is a self number, because there is not a number n which added to its sum of digits gives 2291392.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17838 + ... + 17965.

2^2291392 is an apocalyptic number.

It is an amenable number.

2291392 is a deficient number, since it is larger than the sum of its proper divisors (2255716).

2291392 is an equidigital number, since it uses as much as digits as its factorization.

2291392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35815 (or 35805 counting only the distinct ones).

The product of its digits is 1944, while the sum is 28.

The square root of 2291392 is about 1513.7344549161. The cubic root of 2291392 is about 131.8357307663.

It can be divided in two parts, 22913 and 92, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 2291392 in words is "two million, two hundred ninety-one thousand, three hundred ninety-two".