1138898 has 32 divisors (see below), whose sum is σ = 1995840. Its totient is φ = 483840.

The previous prime is 1138883. The next prime is 1138901. The reversal of 1138898 is 8988311.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a Curzon 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, 26465 + ... + 26507.

It is an arithmetic number, because the mean of its divisors is an integer number (62370).

2^1138898 is an apocalyptic number.

1138898 is a deficient number, since it is larger than the sum of its proper divisors (856942).

1138898 is a wasteful number, since it uses less digits than its factorization.

1138898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122.

The product of its digits is 13824, while the sum is 38.

The square root of 1138898 is about 1067.1916416464. The cubic root of 1138898 is about 104.4307210814.

The spelling of 1138898 in words is "one million, one hundred thirty-eight thousand, eight hundred ninety-eight".