70409574 has 40 divisors (see below), whose sum is σ = 158558400. Its totient is φ = 23352624.

The previous prime is 70409569. The next prime is 70409609. The reversal of 70409574 is 47590407.

It is a happy number.

It is a super-2 number, since 2×70409574² = 9915016221722952, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35152 + ... + 37100.

It is an arithmetic number, because the mean of its divisors is an integer number (3963960).

Almost surely, 2^70409574 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70409574, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79279200).

70409574 is an abundant number, since it is smaller than the sum of its proper divisors (88148826).

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

70409574 is a wasteful number, since it uses less digits than its factorization.

70409574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186 (or 2177 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 70409574 is about 8391.0412941422. The cubic root of 70409574 is about 412.9307632315.

The spelling of 70409574 in words is "seventy million, four hundred nine thousand, five hundred seventy-four".