6351240 has 64 divisors (see below), whose sum is σ = 21778560. Its totient is φ = 1451520.

The previous prime is 6351239. The next prime is 6351253. The reversal of 6351240 is 421536.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2941 + ... + 4620.

It is an arithmetic number, because the mean of its divisors is an integer number (340290).

Almost surely, 2^6351240 is an apocalyptic number.

6351240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6351240 is an abundant number, since it is smaller than the sum of its proper divisors (15427320).

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

6351240 is a wasteful number, since it uses less digits than its factorization.

6351240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7582 (or 7578 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 6351240 is about 2520.1666611556. The cubic root of 6351240 is about 185.1908427506.

Adding to 6351240 its reverse (421536), we get a palindrome (6772776).

The spelling of 6351240 in words is "six million, three hundred fifty-one thousand, two hundred forty".