45509746 has 8 divisors (see below), whose sum is σ = 68588784. Its totient is φ = 22646820.

The previous prime is 45509707. The next prime is 45509749. The reversal of 45509746 is 64790554.

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

It is a super-2 number, since 2×45509746² = 4142273961969032, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45509699 and 45509708.

It is not an unprimeable number, because it can be changed into a prime (45509749) 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, 53500 + ... + 54343.

It is an arithmetic number, because the mean of its divisors is an integer number (8573598).

Almost surely, 2^45509746 is an apocalyptic number.

45509746 is a deficient number, since it is larger than the sum of its proper divisors (23079038).

45509746 is a wasteful number, since it uses less digits than its factorization.

45509746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108056.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 45509746 is about 6746.0911645189. The cubic root of 45509746 is about 357.0273369468.

The spelling of 45509746 in words is "forty-five million, five hundred nine thousand, seven hundred forty-six".