1118472 has 32 divisors (see below), whose sum is σ = 2894400. Its totient is φ = 359744.

The previous prime is 1118441. The next prime is 1118479. The reversal of 1118472 is 2748111.

It is a super-2 number, since 2×1118472² = 2501959229568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1118479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108 + ... + 1499.

It is an arithmetic number, because the mean of its divisors is an integer number (90450).

2^1118472 is an apocalyptic number.

1118472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1118472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1447200).

1118472 is an abundant number, since it is smaller than the sum of its proper divisors (1775928).

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

1118472 is a wasteful number, since it uses less digits than its factorization.

1118472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645 (or 1641 counting only the distinct ones).

The product of its digits is 448, while the sum is 24.

The square root of 1118472 is about 1057.5783658907. The cubic root of 1118472 is about 103.8026335735.

The spelling of 1118472 in words is "one million, one hundred eighteen thousand, four hundred seventy-two".