3420730 has 8 divisors (see below), whose sum is σ = 6157332. Its totient is φ = 1368288.

The previous prime is 3420727. The next prime is 3420749. The reversal of 3420730 is 370243.

It can be written as a sum of positive squares in 2 ways, for example, as 3381921 + 38809 = 1839^2 + 197^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 3420698 and 3420707.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171027 + ... + 171046.

Almost surely, 2^3420730 is an apocalyptic number.

3420730 is a deficient number, since it is larger than the sum of its proper divisors (2736602).

3420730 is a wasteful number, since it uses less digits than its factorization.

3420730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342080.

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 3420730 is about 1849.5215597554. The cubic root of 3420730 is about 150.6744444345.

Adding to 3420730 its reverse (370243), we get a palindrome (3790973).

The spelling of 3420730 in words is "three million, four hundred twenty thousand, seven hundred thirty".