70640270 has 24 divisors (see below), whose sum is σ = 135077544. Its totient is φ = 26592896.

The previous prime is 70640261. The next prime is 70640293. The reversal of 70640270 is 7204607.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 9332 + ... + 15111.

It is an arithmetic number, because the mean of its divisors is an integer number (5628231).

Almost surely, 2^70640270 is an apocalyptic number.

70640270 is a deficient number, since it is larger than the sum of its proper divisors (64437274).

70640270 is a wasteful number, since it uses less digits than its factorization.

70640270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24484 (or 24467 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 70640270 is about 8404.7766180905. The cubic root of 70640270 is about 413.3812588954.

Adding to 70640270 its reverse (7204607), we get a palindrome (77844877).

The spelling of 70640270 in words is "seventy million, six hundred forty thousand, two hundred seventy".