34307220 has 48 divisors (see below), whose sum is σ = 97231680. Its totient is φ = 9038368.

The previous prime is 34307219. The next prime is 34307233. The reversal of 34307220 is 2270343.

It is a happy number.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a Saint-Exupery number, since it is equal to the product of the sides of a Pythagorean triangle: 415 × 249 × 332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413299 + ... + 413381.

It is an arithmetic number, because the mean of its divisors is an integer number (2025660).

Almost surely, 2^34307220 is an apocalyptic number.

34307220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34307220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48615840).

34307220 is an abundant number, since it is smaller than the sum of its proper divisors (62924460).

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

34307220 is an frugal number, since it uses more digits than its factorization.

34307220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 34307220 is about 5857.2365497733. The cubic root of 34307220 is about 324.9340142170.

Adding to 34307220 its reverse (2270343), we get a palindrome (36577563).

The spelling of 34307220 in words is "thirty-four million, three hundred seven thousand, two hundred twenty".