45219770 has 8 divisors (see below), whose sum is σ = 81395604. Its totient is φ = 18087904.

The previous prime is 45219767. The next prime is 45219799. The reversal of 45219770 is 7791254.

It can be written as a sum of positive squares in 2 ways, for example, as 43020481 + 2199289 = 6559^2 + 1483^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 45219770.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2260979 + ... + 2260998.

Almost surely, 2^45219770 is an apocalyptic number.

45219770 is a deficient number, since it is larger than the sum of its proper divisors (36175834).

45219770 is a wasteful number, since it uses less digits than its factorization.

45219770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4521984.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 45219770 is about 6724.5646699247. The cubic root of 45219770 is about 356.2674262533.

The spelling of 45219770 in words is "forty-five million, two hundred nineteen thousand, seven hundred seventy".