70303040 has 112 divisors (see below), whose sum is σ = 182392320. Its totient is φ = 25712640.

The previous prime is 70303039. The next prime is 70303061. The reversal of 70303040 is 4030307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188294 + ... + 188666.

Almost surely, 2^70303040 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 70303040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91196160).

70303040 is an abundant number, since it is smaller than the sum of its proper divisors (112089280).

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

70303040 is a wasteful number, since it uses less digits than its factorization.

70303040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 17.

The square root of 70303040 is about 8384.6908112345. The cubic root of 70303040 is about 412.7223949221.

Adding to 70303040 its reverse (4030307), we get a palindrome (74333347).

The spelling of 70303040 in words is "seventy million, three hundred three thousand, forty".