70448450 has 18 divisors (see below), whose sum is σ = 131144601. Its totient is φ = 28155640.

The previous prime is 70448393. The next prime is 70448489. The reversal of 70448450 is 5484407.

It can be written as a sum of positive squares in 2 ways, for example, as 69039481 + 1408969 = 8309^2 + 1187^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=5935.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 58757 + ... + 59943.

Almost surely, 2^70448450 is an apocalyptic number.

70448450 is a deficient number, since it is larger than the sum of its proper divisors (60696151).

70448450 is an equidigital number, since it uses as much as digits as its factorization.

70448450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2386 (or 1194 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 70448450 is about 8393.3574926843. The cubic root of 70448450 is about 413.0067478920.

Multiplying 70448450 by its sum of digits (32), we get a square (2254350400 = 47480²).

The spelling of 70448450 in words is "seventy million, four hundred forty-eight thousand, four hundred fifty".