452143290 has 32 divisors (see below), whose sum is σ = 1108235520. Its totient is φ = 118005824.

The previous prime is 452143273. The next prime is 452143297. The reversal of 452143290 is 92341254.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (452143297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158925 + ... + 161744.

It is an arithmetic number, because the mean of its divisors is an integer number (34632360).

Almost surely, 2^452143290 is an apocalyptic number.

452143290 is an abundant number, since it is smaller than the sum of its proper divisors (656092230).

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

452143290 is a wasteful number, since it uses less digits than its factorization.

452143290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320726.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 452143290 is about 21263.6612557668. The cubic root of 452143290 is about 767.5241158553.

The spelling of 452143290 in words is "four hundred fifty-two million, one hundred forty-three thousand, two hundred ninety".