70841918 has 48 divisors (see below), whose sum is σ = 130356864. Its totient is φ = 28276560.

The previous prime is 70841917. The next prime is 70841921. The reversal of 70841918 is 81914807.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70841917) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 540713 + ... + 540843.

It is an arithmetic number, because the mean of its divisors is an integer number (2715768).

Almost surely, 2^70841918 is an apocalyptic number.

70841918 is a deficient number, since it is larger than the sum of its proper divisors (59514946).

70841918 is a wasteful number, since it uses less digits than its factorization.

70841918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 70841918 is about 8416.7641050465. The cubic root of 70841918 is about 413.7742279147.

The spelling of 70841918 in words is "seventy million, eight hundred forty-one thousand, nine hundred eighteen".