70347942 has 48 divisors (see below), whose sum is σ = 177166080. Its totient is φ = 19756656.

The previous prime is 70347941. The next prime is 70347947. The reversal of 70347942 is 24974307.

It is a junction number, because it is equal to n+sod(n) for n = 70347897 and 70347906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70347941) 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, 2703 + ... + 12165.

It is an arithmetic number, because the mean of its divisors is an integer number (3690960).

Almost surely, 2^70347942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70347942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88583040).

70347942 is an abundant number, since it is smaller than the sum of its proper divisors (106818138).

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

70347942 is a wasteful number, since it uses less digits than its factorization.

70347942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9537 (or 9534 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 70347942 is about 8387.3680019420. The cubic root of 70347942 is about 412.8102437403.

It can be divided in two parts, 70347 and 942, that added together give a square (71289 = 267²).

The spelling of 70347942 in words is "seventy million, three hundred forty-seven thousand, nine hundred forty-two".