70422406 has 4 divisors (see below), whose sum is σ = 105633612. Its totient is φ = 35211202.

The previous prime is 70422377. The next prime is 70422409. The reversal of 70422406 is 60422407.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60422407 = 1429 ⋅42283.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70422409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17605600 + ... + 17605603.

It is an arithmetic number, because the mean of its divisors is an integer number (26408403).

Almost surely, 2^70422406 is an apocalyptic number.

70422406 is a deficient number, since it is larger than the sum of its proper divisors (35211206).

70422406 is a wasteful number, since it uses less digits than its factorization.

70422406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35211205.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 70422406 is about 8391.8058843136. The cubic root of 70422406 is about 412.9558469684.

Subtracting from 70422406 its reverse (60422407), we obtain a palindrome (9999999).

The spelling of 70422406 in words is "seventy million, four hundred twenty-two thousand, four hundred six".