20335442 has 16 divisors (see below), whose sum is σ = 31601664. Its totient is φ = 9804000.

The previous prime is 20335421. The next prime is 20335463. The reversal of 20335442 is 24453302.

It is an interprime number because it is at equal distance from previous prime (20335421) and next prime (20335463).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26342 + ... + 27102.

It is an arithmetic number, because the mean of its divisors is an integer number (1975104).

Almost surely, 2^20335442 is an apocalyptic number.

20335442 is a deficient number, since it is larger than the sum of its proper divisors (11266222).

20335442 is a wasteful number, since it uses less digits than its factorization.

20335442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 20335442 is about 4509.4835624493. The cubic root of 20335442 is about 272.9509051335.

Adding to 20335442 its reverse (24453302), we get a palindrome (44788744).

The spelling of 20335442 in words is "twenty million, three hundred thirty-five thousand, four hundred forty-two".