20267734 has 4 divisors (see below), whose sum is σ = 30401604. Its totient is φ = 10133866.

The previous prime is 20267719. The next prime is 20267777. The reversal of 20267734 is 43776202.

It is a happy number.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 20267696 and 20267705.

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, 5066932 + ... + 5066935.

It is an arithmetic number, because the mean of its divisors is an integer number (7600401).

Almost surely, 2^20267734 is an apocalyptic number.

20267734 is a deficient number, since it is larger than the sum of its proper divisors (10133870).

20267734 is a wasteful number, since it uses less digits than its factorization.

20267734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10133869.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 20267734 is about 4501.9700132275. The cubic root of 20267734 is about 272.6476331573.

The spelling of 20267734 in words is "twenty million, two hundred sixty-seven thousand, seven hundred thirty-four".