45207730 has 16 divisors (see below), whose sum is σ = 82165824. Its totient is φ = 17907120.

The previous prime is 45207689. The next prime is 45207733. The reversal of 45207730 is 3770254.

It is not an unprimeable number, because it can be changed into a prime (45207733) 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, 20916 + ... + 22975.

It is an arithmetic number, because the mean of its divisors is an integer number (5135364).

Almost surely, 2^45207730 is an apocalyptic number.

45207730 is a deficient number, since it is larger than the sum of its proper divisors (36958094).

45207730 is a wasteful number, since it uses less digits than its factorization.

45207730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44001.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 45207730 is about 6723.6693850903. The cubic root of 45207730 is about 356.2358040922.

Adding to 45207730 its reverse (3770254), we get a palindrome (48977984).

The spelling of 45207730 in words is "forty-five million, two hundred seven thousand, seven hundred thirty".