45728455 has 8 divisors (see below), whose sum is σ = 55159632. Its totient is φ = 36392448.

The previous prime is 45728437. The next prime is 45728471. The reversal of 45728455 is 55482754.

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

It is a cyclic number.

It is not a de Polignac number, because 45728455 - 2⁷ = 45728327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22729 + ... + 24658.

It is an arithmetic number, because the mean of its divisors is an integer number (6894954).

Almost surely, 2^45728455 is an apocalyptic number.

45728455 is a deficient number, since it is larger than the sum of its proper divisors (9431177).

45728455 is a wasteful number, since it uses less digits than its factorization.

45728455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47585.

The product of its digits is 224000, while the sum is 40.

The square root of 45728455 is about 6762.2817894554. The cubic root of 45728455 is about 357.5983526484.

The spelling of 45728455 in words is "forty-five million, seven hundred twenty-eight thousand, four hundred fifty-five".