70299090 has 80 divisors (see below), whose sum is σ = 192360960. Its totient is φ = 18416160.

The previous prime is 70299071. The next prime is 70299113. The reversal of 70299090 is 9099207.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 47055 + ... + 48525.

It is an arithmetic number, because the mean of its divisors is an integer number (2404512).

Almost surely, 2^70299090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70299090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96180480).

70299090 is an abundant number, since it is smaller than the sum of its proper divisors (122061870).

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

70299090 is a wasteful number, since it uses less digits than its factorization.

70299090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549 (or 1540 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 70299090 is about 8384.4552595860. The cubic root of 70299090 is about 412.7146651283.

The spelling of 70299090 in words is "seventy million, two hundred ninety-nine thousand, ninety".