652147442 has 4 divisors (see below), whose sum is σ = 978221166. Its totient is φ = 326073720.

The previous prime is 652147429. The next prime is 652147453. The reversal of 652147442 is 244741256.

It is a happy number.

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., 575952001 + 76195441 = 23999^2 + 8729^2 .

It is a super-2 number, since 2×652147442² = 850592572214286728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163036859 + ... + 163036862.

Almost surely, 2^652147442 is an apocalyptic number.

652147442 is a deficient number, since it is larger than the sum of its proper divisors (326073724).

652147442 is a wasteful number, since it uses less digits than its factorization.

652147442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326073723.

The product of its digits is 53760, while the sum is 35.

The square root of 652147442 is about 25537.1776435847. The cubic root of 652147442 is about 867.1920045414.

Adding to 652147442 its reverse (244741256), we get a palindrome (896888698).

The spelling of 652147442 in words is "six hundred fifty-two million, one hundred forty-seven thousand, four hundred forty-two".