23690136 has 16 divisors (see below), whose sum is σ = 59225400. Its totient is φ = 7896704.

The previous prime is 23690083. The next prime is 23690137. The reversal of 23690136 is 63109632.

It is a happy number.

It is a super-2 number, since 2×23690136² = 1122445087396992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23690137) 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, 493521 + ... + 493568.

Almost surely, 2^23690136 is an apocalyptic number.

It is an amenable number.

23690136 is an abundant number, since it is smaller than the sum of its proper divisors (35535264).

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

23690136 is a wasteful number, since it uses less digits than its factorization.

23690136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987098 (or 987094 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 23690136 is about 4867.2513803994. The cubic root of 23690136 is about 287.2031405889.

Adding to 23690136 its reverse (63109632), we get a palindrome (86799768).

The spelling of 23690136 in words is "twenty-three million, six hundred ninety thousand, one hundred thirty-six".