1115772 has 48 divisors (see below), whose sum is σ = 3064320. Its totient is φ = 309312.

The previous prime is 1115771. The next prime is 1115773. The reversal of 1115772 is 2775111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1115771) and next prime (1115773).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115771) 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, 2929 + ... + 3287.

It is an arithmetic number, because the mean of its divisors is an integer number (63840).

2^1115772 is an apocalyptic number.

1115772 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 1115772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1532160).

1115772 is an abundant number, since it is smaller than the sum of its proper divisors (1948548).

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

1115772 is a wasteful number, since it uses less digits than its factorization.

1115772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 408 counting only the distinct ones).

The product of its digits is 490, while the sum is 24.

The square root of 1115772 is about 1056.3010934388. The cubic root of 1115772 is about 103.7190394869.

The spelling of 1115772 in words is "one million, one hundred fifteen thousand, seven hundred seventy-two".