2261632 has 16 divisors (see below), whose sum is σ = 4505850. Its totient is φ = 1130752.

The previous prime is 2261621. The next prime is 2261639. The reversal of 2261632 is 2361622.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2143296 + 118336 = 1464^2 + 344^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×2261632² = 10229958606848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2261639) 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 as a sum of consecutive naturals, namely, 8707 + ... + 8962.

2^2261632 is an apocalyptic number.

It is an amenable number.

2261632 is a deficient number, since it is larger than the sum of its proper divisors (2244218).

2261632 is an equidigital number, since it uses as much as digits as its factorization.

2261632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17683 (or 17671 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 2261632 is about 1503.8723350072. The cubic root of 2261632 is about 131.2624925373.

The spelling of 2261632 in words is "two million, two hundred sixty-one thousand, six hundred thirty-two".