3420432 has 30 divisors (see below), whose sum is σ = 9572862. Its totient is φ = 1140096.

The previous prime is 3420427. The next prime is 3420433. The reversal of 3420432 is 2340243.

It can be written as a sum of positive squares in only one way, i.e., 3154176 + 266256 = 1776^2 + 516^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (3420433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11733 + ... + 12020.

Almost surely, 2^3420432 is an apocalyptic number.

It is an amenable number.

3420432 is an abundant number, since it is smaller than the sum of its proper divisors (6152430).

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

3420432 is a wasteful number, since it uses less digits than its factorization.

3420432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23767 (or 23758 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 3420432 is about 1849.4409966257. The cubic root of 3420432 is about 150.6700689271.

Adding to 3420432 its reverse (2340243), we get a palindrome (5760675).

The spelling of 3420432 in words is "three million, four hundred twenty thousand, four hundred thirty-two".