45689945 has 8 divisors (see below), whose sum is σ = 62660544. Its totient is φ = 31330224.

The previous prime is 45689921. The next prime is 45689947. The reversal of 45689945 is 54998654.

45689945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 45689945 - 2⁶ = 45689881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45689893 and 45689902.

It is not an unprimeable number, because it can be changed into a prime (45689947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 652679 + ... + 652748.

It is an arithmetic number, because the mean of its divisors is an integer number (7832568).

Almost surely, 2^45689945 is an apocalyptic number.

It is an amenable number.

45689945 is a deficient number, since it is larger than the sum of its proper divisors (16970599).

45689945 is a wasteful number, since it uses less digits than its factorization.

45689945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305439.

The product of its digits is 1555200, while the sum is 50.

The square root of 45689945 is about 6759.4337780616. The cubic root of 45689945 is about 357.4979412078.

The spelling of 45689945 in words is "forty-five million, six hundred eighty-nine thousand, nine hundred forty-five".