70504440 has 192 divisors, whose sum is σ = 238723200. Its totient is φ = 16607232.

The previous prime is 70504439. The next prime is 70504463. The reversal of 70504440 is 4440507.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 70504440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 658867 + ... + 658973.

It is an arithmetic number, because the mean of its divisors is an integer number (1243350).

Almost surely, 2^70504440 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 70504440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119361600).

70504440 is an abundant number, since it is smaller than the sum of its proper divisors (168218760).

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

70504440 is a wasteful number, since it uses less digits than its factorization.

70504440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 70504440 is about 8396.6922058630. The cubic root of 70504440 is about 413.1161334281.

Adding to 70504440 its reverse (4440507), we get a palindrome (74944947).

It can be divided in two parts, 70 and 504440, that added together give a triangular number (504510 = T₁₀₀₄).

The spelling of 70504440 in words is "seventy million, five hundred four thousand, four hundred forty".