70090752 has 128 divisors (see below), whose sum is σ = 201323520. Its totient is φ = 21626880.

The previous prime is 70090723. The next prime is 70090763. The reversal of 70090752 is 25709007.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2260977 + ... + 2261007.

It is an arithmetic number, because the mean of its divisors is an integer number (1572840).

Almost surely, 2^70090752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70090752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100661760).

70090752 is an abundant number, since it is smaller than the sum of its proper divisors (131232768).

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

70090752 is an equidigital number, since it uses as much as digits as its factorization.

70090752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 30.

The square root of 70090752 is about 8372.0219779931. The cubic root of 70090752 is about 412.3065553944.

Adding to 70090752 its reverse (25709007), we get a palindrome (95799759).

The spelling of 70090752 in words is "seventy million, ninety thousand, seven hundred fifty-two".