34681720 has 32 divisors (see below), whose sum is σ = 78444000. Its totient is φ = 13799808.

The previous prime is 34681667. The next prime is 34681727. The reversal of 34681720 is 2718643.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34681727) 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 7 ways as a sum of consecutive naturals, for example, 5782 + ... + 10138.

It is an arithmetic number, because the mean of its divisors is an integer number (2451375).

Almost surely, 2^34681720 is an apocalyptic number.

It is an amenable number.

34681720 is an abundant number, since it is smaller than the sum of its proper divisors (43762280).

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

34681720 is a wasteful number, since it uses less digits than its factorization.

34681720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4567 (or 4563 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 34681720 is about 5889.1187795798. The cubic root of 34681720 is about 326.1120720726.

The spelling of 34681720 in words is "thirty-four million, six hundred eighty-one thousand, seven hundred twenty".