1225410 has 16 divisors (see below), whose sum is σ = 2941056. Its totient is φ = 326768.

The previous prime is 1225409. The next prime is 1225459. The reversal of 1225410 is 145221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1225410.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20394 + ... + 20453.

It is an arithmetic number, because the mean of its divisors is an integer number (183816).

2^1225410 is an apocalyptic number.

1225410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225410 is an abundant number, since it is smaller than the sum of its proper divisors (1715646).

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

1225410 is a wasteful number, since it uses less digits than its factorization.

1225410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40857.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1225410 is about 1106.9823846837. The cubic root of 1225410 is about 107.0106840003.

Subtracting from 1225410 its sum of digits (15), we obtain a triangular number (1225395 = T₁₅₆₅).

The spelling of 1225410 in words is "one million, two hundred twenty-five thousand, four hundred ten".