1031994 has 32 divisors (see below), whose sum is σ = 2376000. Its totient is φ = 331632.

The previous prime is 1031981. The next prime is 1031999. The reversal of 1031994 is 4991301.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1031999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1237 + ... + 1895.

It is an arithmetic number, because the mean of its divisors is an integer number (74250).

2^1031994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1031994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1188000).

1031994 is an abundant number, since it is smaller than the sum of its proper divisors (1344006).

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

1031994 is a wasteful number, since it uses less digits than its factorization.

1031994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699 (or 693 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 1031994 is about 1015.8710548096. The cubic root of 1031994 is about 101.0552910998.

It can be divided in two parts, 1031 and 994, that added together give a square (2025 = 45²).

The spelling of 1031994 in words is "one million, thirty-one thousand, nine hundred ninety-four".