45308919 has 8 divisors (see below), whose sum is σ = 63038592. Its totient is φ = 28892600.

The previous prime is 45308911. The next prime is 45308957. The reversal of 45308919 is 91980354.

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

It is not a de Polignac number, because 45308919 - 2³ = 45308911 is a prime.

It is a super-2 number, since 2×45308919² = 4105796281897122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45308911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328257 + ... + 328394.

It is an arithmetic number, because the mean of its divisors is an integer number (7879824).

Almost surely, 2^45308919 is an apocalyptic number.

45308919 is a deficient number, since it is larger than the sum of its proper divisors (17729673).

45308919 is a wasteful number, since it uses less digits than its factorization.

45308919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656677.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 45308919 is about 6731.1900136603. The cubic root of 45308919 is about 356.5013949786.

The spelling of 45308919 in words is "forty-five million, three hundred eight thousand, nine hundred nineteen".