1226040 has 64 divisors (see below), whose sum is σ = 3900960. Its totient is φ = 307200.

The previous prime is 1226011. The next prime is 1226041. The reversal of 1226040 is 406221.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1740 + ... + 2340.

2^1226040 is an apocalyptic number.

1226040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1226040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1950480).

1226040 is an abundant number, since it is smaller than the sum of its proper divisors (2674920).

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

1226040 is a wasteful number, since it uses less digits than its factorization.

1226040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1226040 is about 1107.2669054930. The cubic root of 1226040 is about 107.0290194094.

The spelling of 1226040 in words is "one million, two hundred twenty-six thousand, forty".