70662220 has 24 divisors (see below), whose sum is σ = 150608304. Its totient is φ = 27842496.

The previous prime is 70662191. The next prime is 70662247. The reversal of 70662220 is 2226607.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25027 + ... + 27706.

It is an arithmetic number, because the mean of its divisors is an integer number (6275346).

Almost surely, 2^70662220 is an apocalyptic number.

It is an amenable number.

70662220 is an abundant number, since it is smaller than the sum of its proper divisors (79946084).

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

70662220 is a wasteful number, since it uses less digits than its factorization.

70662220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52809 (or 52807 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 70662220 is about 8406.0823217477. The cubic root of 70662220 is about 413.4240710146.

Adding to 70662220 its reverse (2226607), we get a palindrome (72888827).

It can be divided in two parts, 706 and 62220, that added together give a palindrome (62926).

The spelling of 70662220 in words is "seventy million, six hundred sixty-two thousand, two hundred twenty".