6349428 has 30 divisors (see below), whose sum is σ = 16599506. Its totient is φ = 2116368.

The previous prime is 6349397. The next prime is 6349433. The reversal of 6349428 is 8249436.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5143824 + 1205604 = 2268^2 + 1098^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6349392 and 6349401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9475 + ... + 10122.

Almost surely, 2^6349428 is an apocalyptic number.

It is an amenable number.

6349428 is an abundant number, since it is smaller than the sum of its proper divisors (10250078).

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

6349428 is a wasteful number, since it uses less digits than its factorization.

6349428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19613 (or 19602 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 6349428 is about 2519.8071354768. The cubic root of 6349428 is about 185.1732295116.

The spelling of 6349428 in words is "six million, three hundred forty-nine thousand, four hundred twenty-eight".