45438208 has 18 divisors (see below), whose sum is σ = 90699434. Its totient is φ = 22718976.

The previous prime is 45438203. The next prime is 45438223. The reversal of 45438208 is 80283454.

It can be written as a sum of positive squares in only one way, i.e., 25080064 + 20358144 = 5008^2 + 4512^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45438203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88491 + ... + 89002.

Almost surely, 2^45438208 is an apocalyptic number.

It is an amenable number.

45438208 is a deficient number, since it is larger than the sum of its proper divisors (45261226).

45438208 is an equidigital number, since it uses as much as digits as its factorization.

45438208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177509 (or 177495 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 45438208 is about 6740.7868976849. The cubic root of 45438208 is about 356.8401651983.

The spelling of 45438208 in words is "forty-five million, four hundred thirty-eight thousand, two hundred eight".