20404466440402 has 64 divisors (see below), whose sum is σ = 33826424929920. Its totient is φ = 9153914112000.

The previous prime is 20404466440399. The next prime is 20404466440411.

It is a happy number.

20404466440402 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 916672749 + ... + 916695007.

It is an arithmetic number, because the mean of its divisors is an integer number (528537889530).

Almost surely, 2^{20404466440402} is an apocalyptic number.

20404466440402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20404466440402 is a deficient number, since it is larger than the sum of its proper divisors (13421958489518).

20404466440402 is a wasteful number, since it uses less digits than its factorization.

20404466440402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23659.

The product of its (nonzero) digits is 589824, while the sum is 40.

It can be divided in two parts, 2040446 and 6440402, that added together give a palindrome (8480848).

The spelling of 20404466440402 in words is "twenty trillion, four hundred four billion, four hundred sixty-six million, four hundred forty thousand, four hundred two".