70443090 has 48 divisors (see below), whose sum is σ = 184624128. Its totient is φ = 18633888.

The previous prime is 70443011. The next prime is 70443097. The reversal of 70443090 is 9034407.

It is not an unprimeable number, because it can be changed into a prime (70443097) 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, 8349 + ... + 14511.

It is an arithmetic number, because the mean of its divisors is an integer number (3846336).

Almost surely, 2^70443090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70443090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92312064).

70443090 is an abundant number, since it is smaller than the sum of its proper divisors (114181038).

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

70443090 is a wasteful number, since it uses less digits than its factorization.

70443090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6303 (or 6300 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 70443090 is about 8393.0381864972. The cubic root of 70443090 is about 412.9962732243.

Adding to 70443090 its reverse (9034407), we get a palindrome (79477497).

The spelling of 70443090 in words is "seventy million, four hundred forty-three thousand, ninety".