70899450 has 48 divisors (see below), whose sum is σ = 185092320. Its totient is φ = 17910720.

The previous prime is 70899407. The next prime is 70899457. The reversal of 70899450 is 5499807.

It is not an unprimeable number, because it can be changed into a prime (70899457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9589 + ... + 15288.

It is an arithmetic number, because the mean of its divisors is an integer number (3856090).

Almost surely, 2^70899450 is an apocalyptic number.

70899450 is an abundant number, since it is smaller than the sum of its proper divisors (114192870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70899450 is a wasteful number, since it uses less digits than its factorization.

70899450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24911 (or 24906 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 70899450 is about 8420.1811144417. The cubic root of 70899450 is about 413.8862087787.

The spelling of 70899450 in words is "seventy million, eight hundred ninety-nine thousand, four hundred fifty".