70940040 has 64 divisors (see below), whose sum is σ = 214401600. Its totient is φ = 18776832.

The previous prime is 70940029. The next prime is 70940057. The reversal of 70940040 is 4004907.

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

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, 14554 + ... + 18806.

It is an arithmetic number, because the mean of its divisors is an integer number (3350025).

Almost surely, 2^70940040 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 70940040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107200800).

70940040 is an abundant number, since it is smaller than the sum of its proper divisors (143461560).

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

70940040 is a wasteful number, since it uses less digits than its factorization.

70940040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4406 (or 4402 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 70940040 is about 8422.5910502648. The cubic root of 70940040 is about 413.9651771219.

Adding to 70940040 its reverse (4004907), we get a palindrome (74944947).

The spelling of 70940040 in words is "seventy million, nine hundred forty thousand, forty".