450420732 has 18 divisors (see below), whose sum is σ = 1138563608. Its totient is φ = 150140232.

The previous prime is 450420703. The next prime is 450420781. The reversal of 450420732 is 237024054.

450420732 is a `hidden beast` number, since 450 + 4 + 207 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 450420696 and 450420705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6255808 + ... + 6255879.

Almost surely, 2^450420732 is an apocalyptic number.

It is an amenable number.

450420732 is an abundant number, since it is smaller than the sum of its proper divisors (688142876).

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

450420732 is a wasteful number, since it uses less digits than its factorization.

450420732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12511697 (or 12511692 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 450420732 is about 21223.1178670807. The cubic root of 450420732 is about 766.5481808912.

Adding to 450420732 its reverse (237024054), we get a palindrome (687444786).

The spelling of 450420732 in words is "four hundred fifty million, four hundred twenty thousand, seven hundred thirty-two".