450379839 has 16 divisors (see below), whose sum is σ = 739085312. Its totient is φ = 237562848.

The previous prime is 450379837. The next prime is 450379841. The reversal of 450379839 is 938973054.

It is an interprime number because it is at equal distance from previous prime (450379837) and next prime (450379841).

It is not a de Polignac number, because 450379839 - 2¹ = 450379837 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450379837) 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, 824599 + ... + 825144.

It is an arithmetic number, because the mean of its divisors is an integer number (46192832).

Almost surely, 2^450379839 is an apocalyptic number.

450379839 is a deficient number, since it is larger than the sum of its proper divisors (288705473).

450379839 is a wasteful number, since it uses less digits than its factorization.

450379839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649766.

The product of its (nonzero) digits is 816480, while the sum is 48.

The square root of 450379839 is about 21222.1544382280. The cubic root of 450379839 is about 766.5249822821.

The spelling of 450379839 in words is "four hundred fifty million, three hundred seventy-nine thousand, eight hundred thirty-nine".