6451228 has 24 divisors (see below), whose sum is σ = 13662432. Its totient is φ = 2601984.

The previous prime is 6451223. The next prime is 6451231. The reversal of 6451228 is 8221546.

6451228 = 957² + 958² + ... + 963².

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 6451196 and 6451205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6451223) 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, 6301 + ... + 7252.

It is an arithmetic number, because the mean of its divisors is an integer number (569268).

Almost surely, 2^6451228 is an apocalyptic number.

6451228 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

6451228 is an abundant number, since it is smaller than the sum of its proper divisors (7211204).

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

6451228 is a wasteful number, since it uses less digits than its factorization.

6451228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13581 (or 13579 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 6451228 is about 2539.9267705979. The cubic root of 6451228 is about 186.1576110405.

It can be divided in two parts, 64512 and 28, that multiplied together give a square (1806336 = 1344²).

The spelling of 6451228 in words is "six million, four hundred fifty-one thousand, two hundred twenty-eight".