45438929 has 2 divisors, whose sum is σ = 45438930. Its totient is φ = 45438928.

The previous prime is 45438907. The next prime is 45438973. The reversal of 45438929 is 92983454.

It is an a-pointer prime, because the next prime (45438973) can be obtained adding 45438929 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25654225 + 19784704 = 5065^2 + 4448^2 .

It is a cyclic number.

It is not a de Polignac number, because 45438929 - 2²⁴ = 28661713 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 45438929.

It is not a weakly prime, because it can be changed into another prime (45438979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22719464 + 22719465.

It is an arithmetic number, because the mean of its divisors is an integer number (22719465).

Almost surely, 2^45438929 is an apocalyptic number.

It is an amenable number.

45438929 is a deficient number, since it is larger than the sum of its proper divisors (1).

45438929 is an equidigital number, since it uses as much as digits as its factorization.

45438929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 44.

The square root of 45438929 is about 6740.8403778757. The cubic root of 45438929 is about 356.8420525996.

The spelling of 45438929 in words is "forty-five million, four hundred thirty-eight thousand, nine hundred twenty-nine".