2158492 has 24 divisors (see below), whose sum is σ = 4358144. Its totient is φ = 916272.

The previous prime is 2158483. The next prime is 2158501. The reversal of 2158492 is 2948512.

It is an interprime number because it is at equal distance from previous prime (2158483) and next prime (2158501).

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3253 + ... + 3859.

2^2158492 is an apocalyptic number.

It is an amenable number.

2158492 is an abundant number, since it is smaller than the sum of its proper divisors (2199652).

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

2158492 is a wasteful number, since it uses less digits than its factorization.

2158492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745 (or 743 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The square root of 2158492 is about 1469.1807240772. The cubic root of 2158492 is about 129.2359921068.

The spelling of 2158492 in words is "two million, one hundred fifty-eight thousand, four hundred ninety-two".