23021046 has 48 divisors (see below), whose sum is σ = 53202240. Its totient is φ = 7173360.

The previous prime is 23021029. The next prime is 23021057. The reversal of 23021046 is 64012032.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27981 + ... + 28791.

It is an arithmetic number, because the mean of its divisors is an integer number (1108380).

Almost surely, 2^23021046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23021046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26601120).

23021046 is an abundant number, since it is smaller than the sum of its proper divisors (30181194).

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

23021046 is a wasteful number, since it uses less digits than its factorization.

23021046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921 (or 918 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 23021046 is about 4798.0252187749. The cubic root of 23021046 is about 284.4734136054.

Adding to 23021046 its reverse (64012032), we get a palindrome (87033078).

The spelling of 23021046 in words is "twenty-three million, twenty-one thousand, forty-six".