1225416 has 16 divisors (see below), whose sum is σ = 3063600. Its totient is φ = 408464.

The previous prime is 1225409. The next prime is 1225459. The reversal of 1225416 is 6145221.

It is a junction number, because it is equal to n+sod(n) for n = 1225392 and 1225401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25506 + ... + 25553.

It is an arithmetic number, because the mean of its divisors is an integer number (191475).

2^1225416 is an apocalyptic number.

It is an amenable number.

1225416 is an abundant number, since it is smaller than the sum of its proper divisors (1838184).

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

1225416 is a wasteful number, since it uses less digits than its factorization.

1225416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51068 (or 51064 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 1225416 is about 1106.9850947506. The cubic root of 1225416 is about 107.0108586529.

Subtracting from 1225416 its sum of digits (21), we obtain a triangular number (1225395 = T₁₅₆₅).

The spelling of 1225416 in words is "one million, two hundred twenty-five thousand, four hundred sixteen".