45785745 has 24 divisors (see below), whose sum is σ = 79560000. Its totient is φ = 24358176.

The previous prime is 45785741. The next prime is 45785749. The reversal of 45785745 is 54758754.

45785745 is a `hidden beast` number, since 4 + 5 + 78 + 574 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (45785741) and next prime (45785749).

It is not a de Polignac number, because 45785745 - 2² = 45785741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 45785745.

It is not an unprimeable number, because it can be changed into a prime (45785741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21436 + ... + 23474.

It is an arithmetic number, because the mean of its divisors is an integer number (3315000).

Almost surely, 2^45785745 is an apocalyptic number.

45785745 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45785745 is a deficient number, since it is larger than the sum of its proper divisors (33774255).

45785745 is a wasteful number, since it uses less digits than its factorization.

45785745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2549 (or 2546 counting only the distinct ones).

The product of its digits is 784000, while the sum is 45.

The square root of 45785745 is about 6766.5164597450. The cubic root of 45785745 is about 357.7476270267.

The spelling of 45785745 in words is "forty-five million, seven hundred eighty-five thousand, seven hundred forty-five".