1138072 has 32 divisors (see below), whose sum is σ = 2378880. Its totient is φ = 506880.

The previous prime is 1138061. The next prime is 1138091. The reversal of 1138072 is 2708311.

1138072 is nontrivially palindromic in base 5.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3048 + ... + 3400.

It is an arithmetic number, because the mean of its divisors is an integer number (74340).

2^1138072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1138072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1189440).

1138072 is an abundant number, since it is smaller than the sum of its proper divisors (1240808).

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

1138072 is a wasteful number, since it uses less digits than its factorization.

1138072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 399 counting only the distinct ones).

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

The square root of 1138072 is about 1066.8045744184. The cubic root of 1138072 is about 104.4054684139.

It can be divided in two parts, 11 and 38072, that added together give a palindrome (38083).

The spelling of 1138072 in words is "one million, one hundred thirty-eight thousand, seventy-two".