45428519 has 4 divisors (see below), whose sum is σ = 47403696. Its totient is φ = 43453344.

The previous prime is 45428491. The next prime is 45428521. The reversal of 45428519 is 91582454.

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 45428519 - 2¹⁶ = 45362983 is a prime.

It is a super-2 number, since 2×45428519² = 4127500677066722, 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 (45428549) 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, 987554 + ... + 987599.

It is an arithmetic number, because the mean of its divisors is an integer number (11850924).

Almost surely, 2^45428519 is an apocalyptic number.

45428519 is a deficient number, since it is larger than the sum of its proper divisors (1975177).

45428519 is a wasteful number, since it uses less digits than its factorization.

45428519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975176.

The product of its digits is 57600, while the sum is 38.

The square root of 45428519 is about 6740.0681747294. The cubic root of 45428519 is about 356.8147998337.

The spelling of 45428519 in words is "forty-five million, four hundred twenty-eight thousand, five hundred nineteen".