1071388 has 12 divisors (see below), whose sum is σ = 1918840. Its totient is φ = 523152.

The previous prime is 1071379. The next prime is 1071401. The reversal of 1071388 is 8831701.

It is a happy number.

It is a super-2 number, since 2×1071388² = 2295744493088, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2943 + ... + 3286.

2^1071388 is an apocalyptic number.

It is an amenable number.

1071388 is a deficient number, since it is larger than the sum of its proper divisors (847452).

1071388 is a wasteful number, since it uses less digits than its factorization.

1071388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6276 (or 6274 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 1071388 is about 1035.0787409661. The cubic root of 1071388 is about 102.3251192064.

It can be divided in two parts, 10713 and 88, that added together give a palindrome (10801).

The spelling of 1071388 in words is "one million, seventy-one thousand, three hundred eighty-eight".