45091368 has 72 divisors (see below), whose sum is σ = 142071930. Its totient is φ = 12882240.

The previous prime is 45091367. The next prime is 45091369. The reversal of 45091368 is 86319054.

It is an interprime number because it is at equal distance from previous prime (45091367) and next prime (45091369).

It can be written as a sum of positive squares in only one way, i.e., 34082244 + 11009124 = 5838^2 + 3318^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×45091368² = 4066462936222848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (45091363) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2863 + ... + 9918.

Almost surely, 2^45091368 is an apocalyptic number.

It is an amenable number.

45091368 is an abundant number, since it is smaller than the sum of its proper divisors (96980562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45091368 is a wasteful number, since it uses less digits than its factorization.

45091368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12807 (or 12793 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 45091368 is about 6715.0106477950. The cubic root of 45091368 is about 355.9298982450.

The spelling of 45091368 in words is "forty-five million, ninety-one thousand, three hundred sixty-eight".