20076774 has 16 divisors (see below), whose sum is σ = 40366080. Its totient is φ = 6656840.

The previous prime is 20076773. The next prime is 20076781. The reversal of 20076774 is 47767002.

Added to its reverse (47767002) it gives a triangular number (67843776 = T₁₁₆₄₈).

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20076773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7614 + ... + 9905.

It is an arithmetic number, because the mean of its divisors is an integer number (2522880).

Almost surely, 2^20076774 is an apocalyptic number.

20076774 is an abundant number, since it is smaller than the sum of its proper divisors (20289306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20076774 is a wasteful number, since it uses less digits than its factorization.

20076774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17715.

The product of its (nonzero) digits is 16464, while the sum is 33.

The square root of 20076774 is about 4480.7113274568. The cubic root of 20076774 is about 271.7886460059.

Adding to 20076774 its reverse (47767002), we get a triangular number (67843776 = T₁₁₆₄₈).

The spelling of 20076774 in words is "twenty million, seventy-six thousand, seven hundred seventy-four".