6437428 has 24 divisors (see below), whose sum is σ = 12035520. Its totient is φ = 3003840.

The previous prime is 6437423. The next prime is 6437443. The reversal of 6437428 is 8247346.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 6437393 and 6437402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6437423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4800 + ... + 5992.

It is an arithmetic number, because the mean of its divisors is an integer number (501480).

Almost surely, 2^6437428 is an apocalyptic number.

It is an amenable number.

6437428 is a deficient number, since it is larger than the sum of its proper divisors (5598092).

6437428 is a wasteful number, since it uses less digits than its factorization.

6437428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287 (or 1285 counting only the distinct ones).

The product of its digits is 32256, while the sum is 34.

The square root of 6437428 is about 2537.2087024918. The cubic root of 6437428 is about 186.0247779840.

The spelling of 6437428 in words is "six million, four hundred thirty-seven thousand, four hundred twenty-eight".