452378638 has 16 divisors (see below), whose sum is σ = 727762320. Its totient is φ = 210240576.

The previous prime is 452378621. The next prime is 452378639. The reversal of 452378638 is 836873254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452378639) 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, 110295 + ... + 114322.

It is an arithmetic number, because the mean of its divisors is an integer number (45485145).

Almost surely, 2^452378638 is an apocalyptic number.

452378638 is a deficient number, since it is larger than the sum of its proper divisors (275383682).

452378638 is a wasteful number, since it uses less digits than its factorization.

452378638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224691.

The product of its digits is 967680, while the sum is 46.

The square root of 452378638 is about 21269.1945780746. The cubic root of 452378638 is about 767.6572623876.

The spelling of 452378638 in words is "four hundred fifty-two million, three hundred seventy-eight thousand, six hundred thirty-eight".