45421630 has 16 divisors (see below), whose sum is σ = 82385424. Its totient is φ = 18029440.

The previous prime is 45421589. The next prime is 45421643. The reversal of 45421630 is 3612454.

45421630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 45421595 and 45421604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16027 + ... + 18646.

It is an arithmetic number, because the mean of its divisors is an integer number (5149089).

Almost surely, 2^45421630 is an apocalyptic number.

45421630 is a deficient number, since it is larger than the sum of its proper divisors (36963794).

45421630 is a wasteful number, since it uses less digits than its factorization.

45421630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34811.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 45421630 is about 6739.5571071102. The cubic root of 45421630 is about 356.7967625488.

The spelling of 45421630 in words is "forty-five million, four hundred twenty-one thousand, six hundred thirty".