45240319 has 4 divisors (see below), whose sum is σ = 46800360. Its totient is φ = 43680280.

The previous prime is 45240313. The next prime is 45240329. The reversal of 45240319 is 91304254.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45240319 - 2¹³ = 45232127 is a prime.

It is a super-2 number, since 2×45240319² = 4093372926443522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45240313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 779977 + ... + 780034.

It is an arithmetic number, because the mean of its divisors is an integer number (11700090).

Almost surely, 2^45240319 is an apocalyptic number.

45240319 is a deficient number, since it is larger than the sum of its proper divisors (1560041).

45240319 is a wasteful number, since it uses less digits than its factorization.

45240319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560040.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 45240319 is about 6726.0924019820. The cubic root of 45240319 is about 356.3213837052.

The spelling of 45240319 in words is "forty-five million, two hundred forty thousand, three hundred nineteen".