23498388 has 18 divisors (see below), whose sum is σ = 59398794. Its totient is φ = 7832784.

The previous prime is 23498351. The next prime is 23498389. The reversal of 23498388 is 88389432.

It can be written as a sum of positive squares in only one way, i.e., 22014864 + 1483524 = 4692^2 + 1218^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23498389) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 326331 + ... + 326402.

It is an arithmetic number, because the mean of its divisors is an integer number (3299933).

Almost surely, 2^23498388 is an apocalyptic number.

It is an amenable number.

23498388 is an abundant number, since it is smaller than the sum of its proper divisors (35900406).

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

23498388 is a wasteful number, since it uses less digits than its factorization.

23498388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652743 (or 652738 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 23498388 is about 4847.5135894601. The cubic root of 23498388 is about 286.4261662942.

The spelling of 23498388 in words is "twenty-three million, four hundred ninety-eight thousand, three hundred eighty-eight".