45530278 has 8 divisors (see below), whose sum is σ = 69415200. Its totient is φ = 22391880.

The previous prime is 45530273. The next prime is 45530291. The reversal of 45530278 is 87203554.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45530273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186478 + ... + 186721.

It is an arithmetic number, because the mean of its divisors is an integer number (8676900).

Almost surely, 2^45530278 is an apocalyptic number.

45530278 is a deficient number, since it is larger than the sum of its proper divisors (23884922).

45530278 is a wasteful number, since it uses less digits than its factorization.

45530278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373262.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 45530278 is about 6747.6127630444. The cubic root of 45530278 is about 357.0810205627.

The spelling of 45530278 in words is "forty-five million, five hundred thirty thousand, two hundred seventy-eight".