1138450 has 12 divisors (see below), whose sum is σ = 2117610. Its totient is φ = 455360.

The previous prime is 1138441. The next prime is 1138451. The reversal of 1138450 is 548311.

It can be written as a sum of positive squares in 3 ways, for example, as 477481 + 660969 = 691^2 + 813^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1138451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11335 + ... + 11434.

2^1138450 is an apocalyptic number.

1138450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1138450 is a deficient number, since it is larger than the sum of its proper divisors (979160).

1138450 is a wasteful number, since it uses less digits than its factorization.

1138450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22781 (or 22776 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1138450 is about 1066.9817243046. The cubic root of 1138450 is about 104.4170262352.

The spelling of 1138450 in words is "one million, one hundred thirty-eight thousand, four hundred fifty".