70789290 has 128 divisors (see below), whose sum is σ = 206841600. Its totient is φ = 15267840.

The previous prime is 70789249. The next prime is 70789297. The reversal of 70789290 is 9298707.

It is a super-2 number, since 2×70789290² = 10022247157408200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (70789297) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 124126 + ... + 124694.

It is an arithmetic number, because the mean of its divisors is an integer number (1615950).

Almost surely, 2^70789290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70789290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103420800).

70789290 is an abundant number, since it is smaller than the sum of its proper divisors (136052310).

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

70789290 is a wasteful number, since it uses less digits than its factorization.

70789290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632.

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 70789290 is about 8413.6371445410. The cubic root of 70789290 is about 413.6717391371.

The spelling of 70789290 in words is "seventy million, seven hundred eighty-nine thousand, two hundred ninety".