70340042 has 8 divisors (see below), whose sum is σ = 106157856. Its totient is φ = 34954092.

The previous prime is 70340041. The next prime is 70340077. The reversal of 70340042 is 24004307.

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 = 70339996 and 70340023.

It is not an unprimeable number, because it can be changed into a prime (70340041) 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, 107558 + ... + 108209.

It is an arithmetic number, because the mean of its divisors is an integer number (13269732).

Almost surely, 2^70340042 is an apocalyptic number.

70340042 is a deficient number, since it is larger than the sum of its proper divisors (35817814).

70340042 is a wasteful number, since it uses less digits than its factorization.

70340042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215932.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 70340042 is about 8386.8970424109. The cubic root of 70340042 is about 412.7947904429.

Adding to 70340042 its reverse (24004307), we get a palindrome (94344349).

The spelling of 70340042 in words is "seventy million, three hundred forty thousand, forty-two".