1138630 has 16 divisors (see below), whose sum is σ = 2116224. Its totient is φ = 440640.

The previous prime is 1138591. The next prime is 1138637. The reversal of 1138630 is 368311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1527 + ... + 2146.

It is an arithmetic number, because the mean of its divisors is an integer number (132264).

2^1138630 is an apocalyptic number.

1138630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1138630 is a deficient number, since it is larger than the sum of its proper divisors (977594).

1138630 is a wasteful number, since it uses less digits than its factorization.

1138630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3711.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1138630 is about 1067.0660710565. The cubic root of 1138630 is about 104.4225290605.

The spelling of 1138630 in words is "one million, one hundred thirty-eight thousand, six hundred thirty".