453616780 has 48 divisors (see below), whose sum is σ = 1025771040. Its totient is φ = 167871488.

The previous prime is 453616777. The next prime is 453616789. The reversal of 453616780 is 87616354.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (453616789) 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, 8754 + ... + 31366.

It is an arithmetic number, because the mean of its divisors is an integer number (21370230).

Almost surely, 2^453616780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 453616780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (512885520).

453616780 is an abundant number, since it is smaller than the sum of its proper divisors (572154260).

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

453616780 is a wasteful number, since it uses less digits than its factorization.

453616780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22698 (or 22696 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 453616780 is about 21298.2811513042. The cubic root of 453616780 is about 768.3569733547.

It can be divided in two parts, 4536 and 16780, that added together give a square (21316 = 146²).

The spelling of 453616780 in words is "four hundred fifty-three million, six hundred sixteen thousand, seven hundred eighty".