70742070 has 48 divisors (see below), whose sum is σ = 210206880. Its totient is φ = 16169472.

The previous prime is 70742047. The next prime is 70742099. The reversal of 70742070 is 7024707.

It is a happy number.

It is a Curzon number.

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 23 ways as a sum of consecutive naturals, for example, 55515 + ... + 56774.

It is an arithmetic number, because the mean of its divisors is an integer number (4379310).

Almost surely, 2^70742070 is an apocalyptic number.

70742070 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

70742070 is an abundant number, since it is smaller than the sum of its proper divisors (139464810).

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

70742070 is a wasteful number, since it uses less digits than its factorization.

70742070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112309 (or 112306 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 27.

The square root of 70742070 is about 8410.8305178502. The cubic root of 70742070 is about 413.5797387586.

Adding to 70742070 its reverse (7024707), we get a palindrome (77766777).

The spelling of 70742070 in words is "seventy million, seven hundred forty-two thousand, seventy".