45438907 has 2 divisors, whose sum is σ = 45438908. Its totient is φ = 45438906.

The previous prime is 45438889. The next prime is 45438929. The reversal of 45438907 is 70983454.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45438907 - 2⁷ = 45438779 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 45438907.

It is not a weakly prime, because it can be changed into another prime (45438307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22719453 + 22719454.

It is an arithmetic number, because the mean of its divisors is an integer number (22719454).

Almost surely, 2^45438907 is an apocalyptic number.

45438907 is a deficient number, since it is larger than the sum of its proper divisors (1).

45438907 is an equidigital number, since it uses as much as digits as its factorization.

45438907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 45438907 is about 6740.8387460315. The cubic root of 45438907 is about 356.8419950093.

The spelling of 45438907 in words is "forty-five million, four hundred thirty-eight thousand, nine hundred seven".