70312470 has 48 divisors (see below), whose sum is σ = 172579248. Its totient is φ = 18333760.

The previous prime is 70312421. The next prime is 70312481. The reversal of 70312470 is 7421307.

It is a self number, because there is not a number n which added to its sum of digits gives 70312470.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65740 + ... + 66800.

It is an arithmetic number, because the mean of its divisors is an integer number (3595401).

Almost surely, 2^70312470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70312470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86289624).

70312470 is an abundant number, since it is smaller than the sum of its proper divisors (102266778).

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

70312470 is a wasteful number, since it uses less digits than its factorization.

70312470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165 (or 1118 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 70312470 is about 8385.2531267696. The cubic root of 70312470 is about 412.7408474109.

Adding to 70312470 its reverse (7421307), we get a palindrome (77733777).

The spelling of 70312470 in words is "seventy million, three hundred twelve thousand, four hundred seventy".