20703542 has 8 divisors (see below), whose sum is σ = 32405616. Its totient is φ = 9901672.

The previous prime is 20703541. The next prime is 20703563. The reversal of 20703542 is 24530702.

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

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20703541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224993 + ... + 225084.

It is an arithmetic number, because the mean of its divisors is an integer number (4050702).

Almost surely, 2^20703542 is an apocalyptic number.

20703542 is a deficient number, since it is larger than the sum of its proper divisors (11702074).

20703542 is a wasteful number, since it uses less digits than its factorization.

20703542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450102.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 20703542 is about 4550.1145040537. The cubic root of 20703542 is about 274.5879979272.

The spelling of 20703542 in words is "twenty million, seven hundred three thousand, five hundred forty-two".