7251822 has 16 divisors (see below), whose sum is σ = 16115280. Its totient is φ = 2417256.

The previous prime is 7251791. The next prime is 7251823. The reversal of 7251822 is 2281527.

It is a hoax number, since the sum of its digits (27) 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 (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7251823) 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, 67093 + ... + 67200.

It is an arithmetic number, because the mean of its divisors is an integer number (1007205).

Almost surely, 2^7251822 is an apocalyptic number.

7251822 is an abundant number, since it is smaller than the sum of its proper divisors (8863458).

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

7251822 is a wasteful number, since it uses less digits than its factorization.

7251822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134304 (or 134298 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 7251822 is about 2692.9207192192. The cubic root of 7251822 is about 193.5600438625.

The spelling of 7251822 in words is "seven million, two hundred fifty-one thousand, eight hundred twenty-two".