45723318 has 16 divisors (see below), whose sum is σ = 91692480. Its totient is φ = 15200136.

The previous prime is 45723313. The next prime is 45723341. The reversal of 45723318 is 81332754.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45723311) 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, 7780 + ... + 12327.

It is an arithmetic number, because the mean of its divisors is an integer number (5730780).

Almost surely, 2^45723318 is an apocalyptic number.

45723318 is an abundant number, since it is smaller than the sum of its proper divisors (45969162).

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

45723318 is a wasteful number, since it uses less digits than its factorization.

45723318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20491.

The product of its digits is 20160, while the sum is 33.

The square root of 45723318 is about 6761.9019513743. The cubic root of 45723318 is about 357.5849616316.

The spelling of 45723318 in words is "forty-five million, seven hundred twenty-three thousand, three hundred eighteen".