450778382 has 16 divisors (see below), whose sum is σ = 715344000. Its totient is φ = 212450040.

The previous prime is 450778381. The next prime is 450778387. The reversal of 450778382 is 283877054.

It is a happy number.

It is a super-2 number, since 2×450778382² = 406402299357075848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450778381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22244 + ... + 37367.

It is an arithmetic number, because the mean of its divisors is an integer number (44709000).

Almost surely, 2^450778382 is an apocalyptic number.

450778382 is a deficient number, since it is larger than the sum of its proper divisors (264565618).

450778382 is a wasteful number, since it uses less digits than its factorization.

450778382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59831.

The product of its (nonzero) digits is 376320, while the sum is 44.

The square root of 450778382 is about 21231.5421484168. The cubic root of 450778382 is about 766.7510160083.

The spelling of 450778382 in words is "four hundred fifty million, seven hundred seventy-eight thousand, three hundred eighty-two".