380821450 has 24 divisors (see below), whose sum is σ = 708888780. Its totient is φ = 152208000.

The previous prime is 380821447. The next prime is 380821499. The reversal of 380821450 is 54128083.

It can be written as a sum of positive squares in 6 ways, for example, as 194853681 + 185967769 = 13959^2 + 13637^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87936 + ... + 92164.

Almost surely, 2^380821450 is an apocalyptic number.

380821450 is a deficient number, since it is larger than the sum of its proper divisors (328067330).

380821450 is a wasteful number, since it uses less digits than its factorization.

380821450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6042 (or 6037 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 380821450 is about 19514.6470631677. The cubic root of 380821450 is about 724.8371889659.

The spelling of 380821450 in words is "three hundred eighty million, eight hundred twenty-one thousand, four hundred fifty".