3200730 has 64 divisors (see below), whose sum is σ = 8588160. Its totient is φ = 758016.

The previous prime is 3200689. The next prime is 3200737. The reversal of 3200730 is 370023.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (3200737) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11169 + ... + 11451.

It is an arithmetic number, because the mean of its divisors is an integer number (134190).

Almost surely, 2^3200730 is an apocalyptic number.

3200730 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 3200730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4294080).

3200730 is an abundant number, since it is smaller than the sum of its proper divisors (5387430).

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

3200730 is a wasteful number, since it uses less digits than its factorization.

3200730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335.

The product of its (nonzero) digits is 126, while the sum is 15.

The square root of 3200730 is about 1789.0584115674. The cubic root of 3200730 is about 147.3724646894.

Adding to 3200730 its reverse (370023), we get a palindrome (3570753).

The spelling of 3200730 in words is "three million, two hundred thousand, seven hundred thirty".