1122490 has 8 divisors (see below), whose sum is σ = 2020500. Its totient is φ = 448992.

The previous prime is 1122481. The next prime is 1122491. The reversal of 1122490 is 942211.

It can be written as a sum of positive squares in 2 ways, for example, as 1083681 + 38809 = 1041^2 + 197^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56115 + ... + 56134.

2^1122490 is an apocalyptic number.

1122490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1122490 is a deficient number, since it is larger than the sum of its proper divisors (898010).

1122490 is a wasteful number, since it uses less digits than its factorization.

1122490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112256.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1122490 is about 1059.4762857186. The cubic root of 1122490 is about 103.9267852548.

The spelling of 1122490 in words is "one million, one hundred twenty-two thousand, four hundred ninety".