70869450 has 48 divisors (see below), whose sum is σ = 176836896. Its totient is φ = 18782400.

The previous prime is 70869439. The next prime is 70869497. The reversal of 70869450 is 5496807.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 70869399 and 70869408.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24585 + ... + 27315.

It is an arithmetic number, because the mean of its divisors is an integer number (3684102).

Almost surely, 2^70869450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70869450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88418448).

70869450 is an abundant number, since it is smaller than the sum of its proper divisors (105967446).

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

70869450 is a wasteful number, since it uses less digits than its factorization.

70869450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919 (or 2914 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 70869450 is about 8418.3994915898. The cubic root of 70869450 is about 413.8278240382.

The spelling of 70869450 in words is "seventy million, eight hundred sixty-nine thousand, four hundred fifty".