45724905 has 20 divisors (see below), whose sum is σ = 81966852. Its totient is φ = 24386400.

The previous prime is 45724891. The next prime is 45724919. The reversal of 45724905 is 50942754.

It is an interprime number because it is at equal distance from previous prime (45724891) and next prime (45724919).

It can be written as a sum of positive squares in 2 ways, for example, as 33593616 + 12131289 = 5796^2 + 3483^2 .

It is not a de Polignac number, because 45724905 - 2⁵ = 45724873 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 45724905.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 56046 + ... + 56855.

Almost surely, 2^45724905 is an apocalyptic number.

45724905 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45724905 is a deficient number, since it is larger than the sum of its proper divisors (36241947).

45724905 is a wasteful number, since it uses less digits than its factorization.

45724905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112918 (or 112909 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 45724905 is about 6762.0192989964. The cubic root of 45724905 is about 357.5890986948.

The spelling of 45724905 in words is "forty-five million, seven hundred twenty-four thousand, nine hundred five".