2261357 has 16 divisors (see below), whose sum is σ = 2829312. Its totient is φ = 1762560.

The previous prime is 2261353. The next prime is 2261377. The reversal of 2261357 is 7531622.

It is not a de Polignac number, because 2261357 - 2² = 2261353 is a prime.

It is a super-2 number, since 2×2261357² = 10227470962898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261353) 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, 3383 + ... + 3995.

It is an arithmetic number, because the mean of its divisors is an integer number (176832).

2^2261357 is an apocalyptic number.

It is an amenable number.

2261357 is a deficient number, since it is larger than the sum of its proper divisors (567955).

2261357 is a wasteful number, since it uses less digits than its factorization.

2261357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668.

The product of its digits is 2520, while the sum is 26.

The square root of 2261357 is about 1503.7809015944. The cubic root of 2261357 is about 131.2571720948.

Adding to 2261357 its reverse (7531622), we get a palindrome (9792979).

The spelling of 2261357 in words is "two million, two hundred sixty-one thousand, three hundred fifty-seven".