45240345 has 24 divisors (see below), whose sum is σ = 79706952. Its totient is φ = 23731200.

The previous prime is 45240331. The next prime is 45240347. The reversal of 45240345 is 54304254.

45240345 = T₃₈₅ + T₃₈₆ + ... + T₆₈₉.

It can be written as a sum of positive squares in 4 ways, for example, as 41616 + 45198729 = 204^2 + 6723^2 .

It is not a de Polignac number, because 45240345 - 2⁴ = 45240329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45240347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5496 + ... + 10985.

It is an arithmetic number, because the mean of its divisors is an integer number (3321123).

Almost surely, 2^45240345 is an apocalyptic number.

45240345 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45240345 is a deficient number, since it is larger than the sum of its proper divisors (34466607).

45240345 is a wasteful number, since it uses less digits than its factorization.

45240345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16553 (or 16550 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 45240345 is about 6726.0943347533. The cubic root of 45240345 is about 356.3214519655.

Adding to 45240345 its reverse (54304254), we get a palindrome (99544599).

The spelling of 45240345 in words is "forty-five million, two hundred forty thousand, three hundred forty-five".