20040462240446 has 16 divisors (see below), whose sum is σ = 30088584969408. Its totient is φ = 10010934304800.

The previous prime is 20040462240443. The next prime is 20040462240457. The reversal of 20040462240446 is 64404226404002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20040462240443) 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, 181765616 + ... + 181875836.

It is an arithmetic number, because the mean of its divisors is an integer number (1880536560588).

Almost surely, 2^{20040462240446} is an apocalyptic number.

20040462240446 is a deficient number, since it is larger than the sum of its proper divisors (10048122728962).

20040462240446 is a wasteful number, since it uses less digits than its factorization.

20040462240446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193747.

The product of its (nonzero) digits is 294912, while the sum is 38.

Adding to 20040462240446 its reverse (64404226404002), we get a palindrome (84444688644448).

The spelling of 20040462240446 in words is "twenty trillion, forty billion, four hundred sixty-two million, two hundred forty thousand, four hundred forty-six".