7742226 has 8 divisors (see below), whose sum is σ = 15484464. Its totient is φ = 2580740.

The previous prime is 7742221. The next prime is 7742239. The reversal of 7742226 is 6222477.

It is a sphenic number, since it is the product of 3 distinct primes.

7742226 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7742193 and 7742202.

It is not an unprimeable number, because it can be changed into a prime (7742221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645180 + ... + 645191.

It is an arithmetic number, because the mean of its divisors is an integer number (1935558).

Almost surely, 2^7742226 is an apocalyptic number.

7742226 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7742226 is a wasteful number, since it uses less digits than its factorization.

7742226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290376.

The product of its digits is 9408, while the sum is 30.

The square root of 7742226 is about 2782.4855794775. The cubic root of 7742226 is about 197.8283892086.

The spelling of 7742226 in words is "seven million, seven hundred forty-two thousand, two hundred twenty-six".