1071438 has 16 divisors (see below), whose sum is σ = 2153856. Its totient is φ = 355320.

The previous prime is 1071419. The next prime is 1071439. The reversal of 1071438 is 8341701.

It is a super-2 number, since 2×1071438² = 2295958775688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071439) 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, 1383 + ... + 2013.

It is an arithmetic number, because the mean of its divisors is an integer number (134616).

2^1071438 is an apocalyptic number.

1071438 is an abundant number, since it is smaller than the sum of its proper divisors (1082418).

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

1071438 is a wasteful number, since it uses less digits than its factorization.

1071438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 1071438 is about 1035.1028934362. The cubic root of 1071438 is about 102.3267109660.

The spelling of 1071438 in words is "one million, seventy-one thousand, four hundred thirty-eight".