20753342 has 4 divisors (see below), whose sum is σ = 31130016. Its totient is φ = 10376670.

The previous prime is 20753333. The next prime is 20753393. The reversal of 20753342 is 24335702.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5188334 + ... + 5188337.

It is an arithmetic number, because the mean of its divisors is an integer number (7782504).

Almost surely, 2^20753342 is an apocalyptic number.

20753342 is a deficient number, since it is larger than the sum of its proper divisors (10376674).

20753342 is a wasteful number, since it uses less digits than its factorization.

20753342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10376673.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 20753342 is about 4555.5836069597. The cubic root of 20753342 is about 274.8079849676.

The spelling of 20753342 in words is "twenty million, seven hundred fifty-three thousand, three hundred forty-two".