454421660 has 48 divisors (see below), whose sum is σ = 1189762560. Its totient is φ = 141637440.

The previous prime is 454421659. The next prime is 454421663. The reversal of 454421660 is 66124454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454421663) 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, 146000 + ... + 149079.

It is an arithmetic number, because the mean of its divisors is an integer number (24786720).

Almost surely, 2^454421660 is an apocalyptic number.

It is an amenable number.

454421660 is an abundant number, since it is smaller than the sum of its proper divisors (735340900).

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

454421660 is a wasteful number, since it uses less digits than its factorization.

454421660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295106 (or 295104 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 454421660 is about 21317.1681984264. The cubic root of 454421660 is about 768.8111524271.

The spelling of 454421660 in words is "four hundred fifty-four million, four hundred twenty-one thousand, six hundred sixty".