20233742 has 8 divisors (see below), whose sum is σ = 30461016. Its totient is φ = 10080072.

The previous prime is 20233739. The next prime is 20233769. The reversal of 20233742 is 24733202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17708 + ... + 18815.

It is an arithmetic number, because the mean of its divisors is an integer number (3807627).

Almost surely, 2^20233742 is an apocalyptic number.

20233742 is a deficient number, since it is larger than the sum of its proper divisors (10227274).

20233742 is a wasteful number, since it uses less digits than its factorization.

20233742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36802.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 20233742 is about 4498.1931928275. The cubic root of 20233742 is about 272.4951243411.

Adding to 20233742 its reverse (24733202), we get a palindrome (44966944).

The spelling of 20233742 in words is "twenty million, two hundred thirty-three thousand, seven hundred forty-two".