452120340 has 48 divisors (see below), whose sum is σ = 1446786432. Its totient is φ = 103341696.

The previous prime is 452120327. The next prime is 452120351. The reversal of 452120340 is 43021254.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 537819 + ... + 538658.

It is an arithmetic number, because the mean of its divisors is an integer number (30141384).

Almost surely, 2^452120340 is an apocalyptic number.

It is an amenable number.

452120340 is an abundant number, since it is smaller than the sum of its proper divisors (994666092).

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

452120340 is a wasteful number, since it uses less digits than its factorization.

452120340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076496 (or 1076494 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 452120340 is about 21263.1215958523. The cubic root of 452120340 is about 767.5111295765.

Adding to 452120340 its reverse (43021254), we get a palindrome (495141594).

The spelling of 452120340 in words is "four hundred fifty-two million, one hundred twenty thousand, three hundred forty".