1121624 has 16 divisors (see below), whose sum is σ = 2403600. Its totient is φ = 480672.

The previous prime is 1121621. The next prime is 1121629. The reversal of 1121624 is 4261211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9959 + ... + 10070.

It is an arithmetic number, because the mean of its divisors is an integer number (150225).

2^1121624 is an apocalyptic number.

1121624 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1121624 is an abundant number, since it is smaller than the sum of its proper divisors (1281976).

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

1121624 is a wasteful number, since it uses less digits than its factorization.

1121624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20042 (or 20038 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 1121624 is about 1059.0675143729. The cubic root of 1121624 is about 103.9000519057.

Adding to 1121624 its reverse (4261211), we get a palindrome (5382835).

The spelling of 1121624 in words is "one million, one hundred twenty-one thousand, six hundred twenty-four".