244153642 has 4 divisors (see below), whose sum is σ = 366230466. Its totient is φ = 122076820.

The previous prime is 244153631. The next prime is 244153681. The reversal of 244153642 is 246351442.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 246351442 = 2 ⋅123175721.

It can be written as a sum of positive squares in only one way, i.e., 148133241 + 96020401 = 12171^2 + 9799^2 .

It is a super-2 number, since 2×244153642² = 119222001803728328, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61038409 + ... + 61038412.

Almost surely, 2^244153642 is an apocalyptic number.

244153642 is a deficient number, since it is larger than the sum of its proper divisors (122076824).

244153642 is a wasteful number, since it uses less digits than its factorization.

244153642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122076823.

The product of its digits is 23040, while the sum is 31.

The square root of 244153642 is about 15625.4165384479. The cubic root of 244153642 is about 625.0111076426.

The spelling of 244153642 in words is "two hundred forty-four million, one hundred fifty-three thousand, six hundred forty-two".