23280542 has 4 divisors (see below), whose sum is σ = 34920816. Its totient is φ = 11640270.

The previous prime is 23280541. The next prime is 23280553. The reversal of 23280542 is 24508232.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23280541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5820134 + ... + 5820137.

It is an arithmetic number, because the mean of its divisors is an integer number (8730204).

Almost surely, 2^23280542 is an apocalyptic number.

23280542 is a deficient number, since it is larger than the sum of its proper divisors (11640274).

23280542 is a wasteful number, since it uses less digits than its factorization.

23280542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11640273.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 23280542 is about 4824.9913989561. The cubic root of 23280542 is about 285.5382952609.

Adding to 23280542 its reverse (24508232), we get a palindrome (47788774).

The spelling of 23280542 in words is "twenty-three million, two hundred eighty thousand, five hundred forty-two".