2492209658 has 4 divisors (see below), whose sum is σ = 3738314490. Its totient is φ = 1246104828.

The previous prime is 2492209633. The next prime is 2492209663. The reversal of 2492209658 is 8569022942.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1273990249 + 1218219409 = 35693^2 + 34903^2 .

It is a super-2 number, since 2×2492209658² = 12422217958856953928, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623052413 + ... + 623052416.

Almost surely, 2^2492209658 is an apocalyptic number.

2492209658 is a deficient number, since it is larger than the sum of its proper divisors (1246104832).

2492209658 is a wasteful number, since it uses less digits than its factorization.

2492209658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246104831.

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 2492209658 is about 49922.0357958287. The cubic root of 2492209658 is about 1355.7975919955.

The spelling of 2492209658 in words is "two billion, four hundred ninety-two million, two hundred nine thousand, six hundred fifty-eight".