1124890 has 32 divisors (see below), whose sum is σ = 2313360. Its totient is φ = 390144.

The previous prime is 1124869. The next prime is 1124951. The reversal of 1124890 is 984211.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 619369 + 505521 = 787^2 + 711^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1956 + ... + 2464.

2^1124890 is an apocalyptic number.

1124890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1124890 is an abundant number, since it is smaller than the sum of its proper divisors (1188470).

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

1124890 is a wasteful number, since it uses less digits than its factorization.

1124890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 1124890 is about 1060.6083160149. The cubic root of 1124890 is about 104.0008012759. Note that the first 3 decimals are identical.

The spelling of 1124890 in words is "one million, one hundred twenty-four thousand, eight hundred ninety".