20193542 has 16 divisors (see below), whose sum is σ = 32040960. Its totient is φ = 9518472.

The previous prime is 20193533. The next prime is 20193559. The reversal of 20193542 is 24539102.

It is a congruent number.

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, 7283 + ... + 9665.

It is an arithmetic number, because the mean of its divisors is an integer number (2002560).

Almost surely, 2^20193542 is an apocalyptic number.

20193542 is a deficient number, since it is larger than the sum of its proper divisors (11847418).

20193542 is a wasteful number, since it uses less digits than its factorization.

20193542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2627.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 20193542 is about 4493.7225103471. The cubic root of 20193542 is about 272.3145420475.

The spelling of 20193542 in words is "twenty million, one hundred ninety-three thousand, five hundred forty-two".