70004040 has 32 divisors (see below), whose sum is σ = 210012480. Its totient is φ = 18667712.

The previous prime is 70004023. The next prime is 70004059. The reversal of 70004040 is 4040007.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 291564 + ... + 291803.

It is an arithmetic number, because the mean of its divisors is an integer number (6562890).

Almost surely, 2^70004040 is an apocalyptic number.

It is an amenable number.

70004040 is an abundant number, since it is smaller than the sum of its proper divisors (140008440).

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

70004040 is a wasteful number, since it uses less digits than its factorization.

70004040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583381 (or 583377 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 70004040 is about 8366.8416980364. The cubic root of 70004040 is about 412.1364583962.

Adding to 70004040 its reverse (4040007), we get a palindrome (74044047).

The spelling of 70004040 in words is "seventy million, four thousand, forty".