452009780 has 12 divisors (see below), whose sum is σ = 949220580. Its totient is φ = 180803904.

The previous prime is 452009773. The next prime is 452009813. The reversal of 452009780 is 87900254.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 145829776 + 306180004 = 12076^2 + 17498^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 452009780.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11300225 + ... + 11300264.

It is an arithmetic number, because the mean of its divisors is an integer number (79101715).

Almost surely, 2^452009780 is an apocalyptic number.

It is an amenable number.

452009780 is an abundant number, since it is smaller than the sum of its proper divisors (497210800).

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

452009780 is a wasteful number, since it uses less digits than its factorization.

452009780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22600498 (or 22600496 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 452009780 is about 21260.5216304775. The cubic root of 452009780 is about 767.4485629390.

It can be divided in two parts, 45 and 2009780, that multiplied together give a square (90440100 = 9510²).

The spelling of 452009780 in words is "four hundred fifty-two million, nine thousand, seven hundred eighty".