2261624 has 8 divisors (see below), whose sum is σ = 4240560. Its totient is φ = 1130808.

The previous prime is 2261621. The next prime is 2261639. The reversal of 2261624 is 4261622.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2261624² = 10229886234752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2261624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141344 + ... + 141359.

It is an arithmetic number, because the mean of its divisors is an integer number (530070).

2^2261624 is an apocalyptic number.

It is an amenable number.

2261624 is a deficient number, since it is larger than the sum of its proper divisors (1978936).

2261624 is a wasteful number, since it uses less digits than its factorization.

2261624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282709 (or 282705 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 2261624 is about 1503.8696752046. The cubic root of 2261624 is about 131.2623377669.

The spelling of 2261624 in words is "two million, two hundred sixty-one thousand, six hundred twenty-four".