1047438 has 64 divisors (see below), whose sum is σ = 2833920. Its totient is φ = 279936.

The previous prime is 1047419. The next prime is 1047467. The reversal of 1047438 is 8347401.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6345 + ... + 6507.

It is an arithmetic number, because the mean of its divisors is an integer number (44280).

2^1047438 is an apocalyptic number.

1047438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1047438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1416960).

1047438 is an abundant number, since it is smaller than the sum of its proper divisors (1786482).

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

1047438 is a wasteful number, since it uses less digits than its factorization.

1047438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 1047438 is about 1023.4441850927. Note that the first 3 decimals coincide. The cubic root of 1047438 is about 101.5569014508.

It can be divided in two parts, 1047 and 438, that added together give a triangular number (1485 = T₅₄).

The spelling of 1047438 in words is "one million, forty-seven thousand, four hundred thirty-eight".