252377842 has 4 divisors (see below), whose sum is σ = 378566766. Its totient is φ = 126188920.

The previous prime is 252377831. The next prime is 252377843. The reversal of 252377842 is 248773252.

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., 219899241 + 32478601 = 14829^2 + 5699^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 252377795 and 252377804.

It is not an unprimeable number, because it can be changed into a prime (252377843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63094459 + ... + 63094462.

Almost surely, 2^252377842 is an apocalyptic number.

252377842 is a deficient number, since it is larger than the sum of its proper divisors (126188924).

252377842 is a wasteful number, since it uses less digits than its factorization.

252377842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126188923.

The product of its digits is 188160, while the sum is 40.

The square root of 252377842 is about 15886.4043131226. The cubic root of 252377842 is about 631.9514880912.

The spelling of 252377842 in words is "two hundred fifty-two million, three hundred seventy-seven thousand, eight hundred forty-two".