45728761 has 8 divisors (see below), whose sum is σ = 51387840. Its totient is φ = 40375632.

The previous prime is 45728747. The next prime is 45728777. The reversal of 45728761 is 16782754.

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 45728761 - 2⁵ = 45728729 is a prime.

It is a super-2 number, since 2×45728761² = 4182239165190242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45728731) 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, 76171 + ... + 76768.

It is an arithmetic number, because the mean of its divisors is an integer number (6423480).

Almost surely, 2^45728761 is an apocalyptic number.

It is an amenable number.

45728761 is a deficient number, since it is larger than the sum of its proper divisors (5659079).

45728761 is a wasteful number, since it uses less digits than its factorization.

45728761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152975.

The product of its digits is 94080, while the sum is 40.

The square root of 45728761 is about 6762.3044149166. The cubic root of 45728761 is about 357.5991502907.

Subtracting from 45728761 its product of digits (94080), we obtain a triangular number (45634681 = T₉₅₅₃).

The spelling of 45728761 in words is "forty-five million, seven hundred twenty-eight thousand, seven hundred sixty-one".