34239870 has 192 divisors, whose sum is σ = 113218560. Its totient is φ = 6994944.

The previous prime is 34239869. The next prime is 34239871. The reversal of 34239870 is 7893243.

It is an interprime number because it is at equal distance from previous prime (34239869) and next prime (34239871).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34239871) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 246261 + ... + 246399.

It is an arithmetic number, because the mean of its divisors is an integer number (589680).

Almost surely, 2^34239870 is an apocalyptic number.

34239870 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 34239870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56609280).

34239870 is an abundant number, since it is smaller than the sum of its proper divisors (78978690).

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

34239870 is a wasteful number, since it uses less digits than its factorization.

34239870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 34239870 is about 5851.4844270493. The cubic root of 34239870 is about 324.7212442114.

The spelling of 34239870 in words is "thirty-four million, two hundred thirty-nine thousand, eight hundred seventy".