23642461 has 4 divisors (see below), whose sum is σ = 25033212. Its totient is φ = 22251712.

The previous prime is 23642449. The next prime is 23642471. The reversal of 23642461 is 16424632.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10725625 + 12916836 = 3275^2 + 3594^2 .

It is a cyclic number.

It is not a de Polignac number, because 23642461 - 2²¹ = 21545309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23642431) 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, 695350 + ... + 695383.

It is an arithmetic number, because the mean of its divisors is an integer number (6258303).

Almost surely, 2^23642461 is an apocalyptic number.

It is an amenable number.

23642461 is a deficient number, since it is larger than the sum of its proper divisors (1390751).

23642461 is a wasteful number, since it uses less digits than its factorization.

23642461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390750.

The product of its digits is 6912, while the sum is 28.

The square root of 23642461 is about 4862.3513859037. The cubic root of 23642461 is about 287.0103514176.

It can be divided in two parts, 2 and 3642461, that added together give a palindrome (3642463).

The spelling of 23642461 in words is "twenty-three million, six hundred forty-two thousand, four hundred sixty-one".