34870140 has 36 divisors (see below), whose sum is σ = 105773304. Its totient is φ = 9298656.

The previous prime is 34870117. The next prime is 34870141. The reversal of 34870140 is 4107843.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34870141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96682 + ... + 97041.

Almost surely, 2^34870140 is an apocalyptic number.

34870140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

34870140 is an abundant number, since it is smaller than the sum of its proper divisors (70903164).

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

34870140 is a wasteful number, since it uses less digits than its factorization.

34870140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193738 (or 193733 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 34870140 is about 5905.0944107609. The cubic root of 34870140 is about 326.7015766292.

Adding to 34870140 its reverse (4107843), we get a palindrome (38977983).

The spelling of 34870140 in words is "thirty-four million, eight hundred seventy thousand, one hundred forty".