45442930 has 32 divisors (see below), whose sum is σ = 88987248. Its totient is φ = 16608000.

The previous prime is 45442907. The next prime is 45442939. The reversal of 45442930 is 3924454.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 16638241 + 28804689 = 4079^2 + 5367^2 .

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 45442892 and 45442901.

It is not an unprimeable number, because it can be changed into a prime (45442939) 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, 11400 + ... + 14860.

Almost surely, 2^45442930 is an apocalyptic number.

45442930 is a deficient number, since it is larger than the sum of its proper divisors (43544318).

45442930 is a wasteful number, since it uses less digits than its factorization.

45442930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3582.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 45442930 is about 6741.1371444290. The cubic root of 45442930 is about 356.8525258742.

The spelling of 45442930 in words is "forty-five million, four hundred forty-two thousand, nine hundred thirty".