450308556 has 36 divisors (see below), whose sum is σ = 1164755592. Its totient is φ = 146611584.

The previous prime is 450308519. The next prime is 450308557. The reversal of 450308556 is 655803054.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 450308556.

It is not an unprimeable number, because it can be changed into a prime (450308557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143901 + ... + 146996.

It is an arithmetic number, because the mean of its divisors is an integer number (32354322).

Almost surely, 2^450308556 is an apocalyptic number.

It is an amenable number.

450308556 is an abundant number, since it is smaller than the sum of its proper divisors (714447036).

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

450308556 is a wasteful number, since it uses less digits than its factorization.

450308556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290950 (or 290945 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 450308556 is about 21220.4749239973. The cubic root of 450308556 is about 766.4845400609.

The spelling of 450308556 in words is "four hundred fifty million, three hundred eight thousand, five hundred fifty-six".