452179890 has 48 divisors (see below), whose sum is σ = 1216215000. Its totient is φ = 116422656.

The previous prime is 452179877. The next prime is 452179907. The reversal of 452179890 is 98971254.

It can be written as a sum of positive squares in 4 ways, for example, as 443902761 + 8277129 = 21069^2 + 2877^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 84015 + ... + 89234.

Almost surely, 2^452179890 is an apocalyptic number.

452179890 is an abundant number, since it is smaller than the sum of its proper divisors (764035110).

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

452179890 is a wasteful number, since it uses less digits than its factorization.

452179890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173291 (or 173288 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 452179890 is about 21264.5218615421. The cubic root of 452179890 is about 767.5448250901.

The spelling of 452179890 in words is "four hundred fifty-two million, one hundred seventy-nine thousand, eight hundred ninety".