45421838 has 16 divisors (see below), whose sum is σ = 84945024. Its totient is φ = 17696760.

The previous prime is 45421793. The next prime is 45421843. The reversal of 45421838 is 83812454.

It is a junction number, because it is equal to n+sod(n) for n = 45421798 and 45421807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147320 + ... + 147627.

It is an arithmetic number, because the mean of its divisors is an integer number (5309064).

Almost surely, 2^45421838 is an apocalyptic number.

45421838 is a deficient number, since it is larger than the sum of its proper divisors (39523186).

45421838 is a wasteful number, since it uses less digits than its factorization.

45421838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294967.

The product of its digits is 30720, while the sum is 35.

The square root of 45421838 is about 6739.5725383736. The cubic root of 45421838 is about 356.7973071763.

The spelling of 45421838 in words is "forty-five million, four hundred twenty-one thousand, eight hundred thirty-eight".