450347251928 has 64 divisors (see below), whose sum is σ = 988388352000. Its totient is φ = 188357811840.

The previous prime is 450347251903. The next prime is 450347251931. The reversal of 450347251928 is 829152743054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 673433 + ... + 1163703.

It is an arithmetic number, because the mean of its divisors is an integer number (15443568000).

Almost surely, 2^450347251928 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 450347251928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (494194176000).

450347251928 is an abundant number, since it is smaller than the sum of its proper divisors (538041100072).

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

450347251928 is a wasteful number, since it uses less digits than its factorization.

450347251928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490680 (or 490676 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 450347251928 in words is "four hundred fifty billion, three hundred forty-seven million, two hundred fifty-one thousand, nine hundred twenty-eight".