1226190 has 32 divisors (see below), whose sum is σ = 3363840. Its totient is φ = 280224.

The previous prime is 1226189. The next prime is 1226191. The reversal of 1226190 is 916221.

It is an interprime number because it is at equal distance from previous prime (1226189) and next prime (1226191).

It is a super-2 number, since 2×1226190² = 3007083832200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226191) 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, 2710 + ... + 3129.

It is an arithmetic number, because the mean of its divisors is an integer number (105120).

2^1226190 is an apocalyptic number.

1226190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1226190 is an abundant number, since it is smaller than the sum of its proper divisors (2137650).

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

1226190 is a wasteful number, since it uses less digits than its factorization.

1226190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5856.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1226190 is about 1107.3346377676. The cubic root of 1226190 is about 107.0333840571.

The spelling of 1226190 in words is "one million, two hundred twenty-six thousand, one hundred ninety".