45405723 has 16 divisors (see below), whose sum is σ = 66367872. Its totient is φ = 27384000.

The previous prime is 45405719. The next prime is 45405727. The reversal of 45405723 is 32750454.

It is an interprime number because it is at equal distance from previous prime (45405719) and next prime (45405727).

It is not a de Polignac number, because 45405723 - 2² = 45405719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45405727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3703 + ... + 10223.

It is an arithmetic number, because the mean of its divisors is an integer number (4147992).

Almost surely, 2^45405723 is an apocalyptic number.

45405723 is a deficient number, since it is larger than the sum of its proper divisors (20962149).

45405723 is a wasteful number, since it uses less digits than its factorization.

45405723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6746.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 45405723 is about 6738.3768817127. The cubic root of 45405723 is about 356.7551067065.

The spelling of 45405723 in words is "forty-five million, four hundred five thousand, seven hundred twenty-three".