70331018 has 8 divisors (see below), whose sum is σ = 106302240. Its totient is φ = 34896940.

The previous prime is 70331017. The next prime is 70331021. The reversal of 70331018 is 81013307.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 70330984 and 70331002.

It is not an unprimeable number, because it can be changed into a prime (70331017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133958 + ... + 134481.

It is an arithmetic number, because the mean of its divisors is an integer number (13287780).

Almost surely, 2^70331018 is an apocalyptic number.

70331018 is a deficient number, since it is larger than the sum of its proper divisors (35971222).

70331018 is a wasteful number, since it uses less digits than its factorization.

70331018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268572.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 70331018 is about 8386.3590431128. The cubic root of 70331018 is about 412.7771370580. Note that the first 3 decimals are identical.

The spelling of 70331018 in words is "seventy million, three hundred thirty-one thousand, eighteen".