70036740 has 72 divisors (see below), whose sum is σ = 219786840. Its totient is φ = 18031104.

The previous prime is 70036697. The next prime is 70036783. The reversal of 70036740 is 4763007.

It is an interprime number because it is at equal distance from previous prime (70036697) and next prime (70036783).

It can be written as a sum of positive squares in 4 ways, for example, as 5008644 + 65028096 = 2238^2 + 8064^2 .

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, 1489 + ... + 11928.

It is an arithmetic number, because the mean of its divisors is an integer number (3052595).

Almost surely, 2^70036740 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 70036740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109893420).

70036740 is an abundant number, since it is smaller than the sum of its proper divisors (149750100).

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

70036740 is a wasteful number, since it uses less digits than its factorization.

70036740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13461 (or 13456 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 70036740 is about 8368.7956122730. The cubic root of 70036740 is about 412.2006202375.

Adding to 70036740 its reverse (4763007), we get a palindrome (74799747).

The spelling of 70036740 in words is "seventy million, thirty-six thousand, seven hundred forty".