451322532 has 36 divisors (see below), whose sum is σ = 1144259116. Its totient is φ = 149990400.

The previous prime is 451322527. The next prime is 451322533. The reversal of 451322532 is 235223154.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 64256256 + 387066276 = 8016^2 + 19674^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 451322496 and 451322505.

It is not an unprimeable number, because it can be changed into a prime (451322533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6469 + ... + 30732.

Almost surely, 2^451322532 is an apocalyptic number.

It is an amenable number.

451322532 is an abundant number, since it is smaller than the sum of its proper divisors (692936584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

451322532 is a wasteful number, since it uses less digits than its factorization.

451322532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37548 (or 37543 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 451322532 is about 21244.3529437825. The cubic root of 451322532 is about 767.0594157388.

Adding to 451322532 its reverse (235223154), we get a palindrome (686545686).

The spelling of 451322532 in words is "four hundred fifty-one million, three hundred twenty-two thousand, five hundred thirty-two".