452637946 has 12 divisors (see below), whose sum is σ = 697807278. Its totient is φ = 220200912.

The previous prime is 452637919. The next prime is 452637949. The reversal of 452637946 is 649736254.

It can be written as a sum of positive squares in 3 ways, for example, as 406465921 + 46172025 = 20161^2 + 6795^2 .

It is a super-2 number, since 2×452637946² = 409762220318197832, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 452637896 and 452637905.

It is not an unprimeable number, because it can be changed into a prime (452637949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79921 + ... + 85396.

Almost surely, 2^452637946 is an apocalyptic number.

452637946 is a deficient number, since it is larger than the sum of its proper divisors (245169332).

452637946 is a wasteful number, since it uses less digits than its factorization.

452637946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165393 (or 165356 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 46.

The square root of 452637946 is about 21275.2895632468. The cubic root of 452637946 is about 767.8039106673.

The spelling of 452637946 in words is "four hundred fifty-two million, six hundred thirty-seven thousand, nine hundred forty-six".