70422540 has 24 divisors (see below), whose sum is σ = 197183280. Its totient is φ = 18779328.

The previous prime is 70422533. The next prime is 70422559. The reversal of 70422540 is 4522407.

It is a self number, because there is not a number n which added to its sum of digits gives 70422540.

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, 586795 + ... + 586914.

It is an arithmetic number, because the mean of its divisors is an integer number (8215970).

Almost surely, 2^70422540 is an apocalyptic number.

It is an amenable number.

70422540 is an abundant number, since it is smaller than the sum of its proper divisors (126760740).

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

70422540 is a wasteful number, since it uses less digits than its factorization.

70422540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173721 (or 1173719 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 70422540 is about 8391.8138682885. The cubic root of 70422540 is about 412.9561088929.

Adding to 70422540 its reverse (4522407), we get a palindrome (74944947).

The spelling of 70422540 in words is "seventy million, four hundred twenty-two thousand, five hundred forty".