70722418 has 16 divisors (see below), whose sum is σ = 114408000. Its totient is φ = 32594256.

The previous prime is 70722413. The next prime is 70722433. The reversal of 70722418 is 81422707.

It is a self number, because there is not a number n which added to its sum of digits gives 70722418.

It is not an unprimeable number, because it can be changed into a prime (70722413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22083 + ... + 25081.

It is an arithmetic number, because the mean of its divisors is an integer number (7150500).

Almost surely, 2^70722418 is an apocalyptic number.

70722418 is a deficient number, since it is larger than the sum of its proper divisors (43685582).

70722418 is a wasteful number, since it uses less digits than its factorization.

70722418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3921.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 70722418 is about 8409.6621810867. The cubic root of 70722418 is about 413.5414380145.

The spelling of 70722418 in words is "seventy million, seven hundred twenty-two thousand, four hundred eighteen".