20076542 has 4 divisors (see below), whose sum is σ = 30114816. Its totient is φ = 10038270.

The previous prime is 20076523. The next prime is 20076557. The reversal of 20076542 is 24567002.

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, 5019134 + ... + 5019137.

It is an arithmetic number, because the mean of its divisors is an integer number (7528704).

Almost surely, 2^20076542 is an apocalyptic number.

20076542 is a deficient number, since it is larger than the sum of its proper divisors (10038274).

20076542 is a wasteful number, since it uses less digits than its factorization.

20076542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10038273.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 20076542 is about 4480.6854386355. The cubic root of 20076542 is about 271.7875991045.

The spelling of 20076542 in words is "twenty million, seventy-six thousand, five hundred forty-two".