1138270 has 48 divisors (see below), whose sum is σ = 2511648. Its totient is φ = 369600.

The previous prime is 1138237. The next prime is 1138273. The reversal of 1138270 is 728311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11220 + ... + 11320.

It is an arithmetic number, because the mean of its divisors is an integer number (52326).

2^1138270 is an apocalyptic number.

1138270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1138270 is an abundant number, since it is smaller than the sum of its proper divisors (1373378).

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

1138270 is a wasteful number, since it uses less digits than its factorization.

1138270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 1138270 is about 1066.8973708844. The cubic root of 1138270 is about 104.4115228299.

The spelling of 1138270 in words is "one million, one hundred thirty-eight thousand, two hundred seventy".