45219738 has 16 divisors (see below), whose sum is σ = 90560736. Its totient is φ = 15053040.

The previous prime is 45219709. The next prime is 45219739. The reversal of 45219738 is 83791254.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 45219696 and 45219705.

It is not an unprimeable number, because it can be changed into a prime (45219739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220 + ... + 9512.

It is an arithmetic number, because the mean of its divisors is an integer number (5660046).

Almost surely, 2^45219738 is an apocalyptic number.

45219738 is an abundant number, since it is smaller than the sum of its proper divisors (45340998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45219738 is a wasteful number, since it uses less digits than its factorization.

45219738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10109.

The product of its digits is 60480, while the sum is 39.

The square root of 45219738 is about 6724.5622905881. The cubic root of 45219738 is about 356.2673422152.

The spelling of 45219738 in words is "forty-five million, two hundred nineteen thousand, seven hundred thirty-eight".