1161624 has 32 divisors (see below), whose sum is σ = 3006000. Its totient is φ = 373632.

The previous prime is 1161619. The next prime is 1161637. The reversal of 1161624 is 4261611.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1161624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139 + ... + 1530.

2^1161624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1161624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1503000).

1161624 is an abundant number, since it is smaller than the sum of its proper divisors (1844376).

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

1161624 is a wasteful number, since it uses less digits than its factorization.

1161624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707 (or 1703 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

The square root of 1161624 is about 1077.7866208114. The cubic root of 1161624 is about 105.1207680722.

It can be divided in two parts, 11616 and 24, that multiplied together give a square (278784 = 528²).

The spelling of 1161624 in words is "one million, one hundred sixty-one thousand, six hundred twenty-four".