70130040 has 32 divisors (see below), whose sum is σ = 210390480. Its totient is φ = 18701312.

The previous prime is 70130023. The next prime is 70130041. The reversal of 70130040 is 4003107.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70130041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292089 + ... + 292328.

Almost surely, 2^70130040 is an apocalyptic number.

It is an amenable number.

70130040 is an abundant number, since it is smaller than the sum of its proper divisors (140260440).

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

70130040 is a wasteful number, since it uses less digits than its factorization.

70130040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584431 (or 584427 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 70130040 is about 8374.3680358580. The cubic root of 70130040 is about 412.3835777966.

Adding to 70130040 its reverse (4003107), we get a palindrome (74133147).

The spelling of 70130040 in words is "seventy million, one hundred thirty thousand, forty".