7226406 has 24 divisors (see below), whose sum is σ = 17081064. Its totient is φ = 2189760.

The previous prime is 7226381. The next prime is 7226431. The reversal of 7226406 is 6046227.

It is an interprime number because it is at equal distance from previous prime (7226381) and next prime (7226431).

It is a nialpdrome in base 5.

It is a zygodrome in base 5.

It is a self number, because there is not a number n which added to its sum of digits gives 7226406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18051 + ... + 18446.

It is an arithmetic number, because the mean of its divisors is an integer number (711711).

Almost surely, 2^7226406 is an apocalyptic number.

7226406 is an abundant number, since it is smaller than the sum of its proper divisors (9854658).

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

7226406 is a wasteful number, since it uses less digits than its factorization.

7226406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36516 (or 36513 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 7226406 is about 2688.1975373845. The cubic root of 7226406 is about 193.3336510762. Note that the first 3 decimals are identical.

The spelling of 7226406 in words is "seven million, two hundred twenty-six thousand, four hundred six".