1225950 has 48 divisors (see below), whose sum is σ = 3321216. Its totient is φ = 296800.

The previous prime is 1225949. The next prime is 1225963. The reversal of 1225950 is 595221.

It is a self number, because there is not a number n which added to its sum of digits gives 1225950.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1279 + ... + 2021.

It is an arithmetic number, because the mean of its divisors is an integer number (69192).

2^1225950 is an apocalyptic number.

1225950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1225950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1660608).

1225950 is an abundant number, since it is smaller than the sum of its proper divisors (2095266).

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

1225950 is a wasteful number, since it uses less digits than its factorization.

1225950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769 (or 764 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 1225950 is about 1107.2262641394. The cubic root of 1225950 is about 107.0264004498.

The spelling of 1225950 in words is "one million, two hundred twenty-five thousand, nine hundred fifty".