20401404033 has 8 divisors (see below), whose sum is σ = 28633549600. Its totient is φ = 12885097248.

The previous prime is 20401403993. The next prime is 20401404073. The reversal of 20401404033 is 33040410402.

It is an interprime number because it is at equal distance from previous prime (20401403993) and next prime (20401404073).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20401404033 - 2¹⁷ = 20401272961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20401404073) 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, 178959628 + ... + 178959741.

It is an arithmetic number, because the mean of its divisors is an integer number (3579193700).

Almost surely, 2^20401404033 is an apocalyptic number.

It is an amenable number.

20401404033 is a deficient number, since it is larger than the sum of its proper divisors (8232145567).

20401404033 is a wasteful number, since it uses less digits than its factorization.

20401404033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357919391.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20401404033 its reverse (33040410402), we get a palindrome (53441814435).

The spelling of 20401404033 in words is "twenty billion, four hundred one million, four hundred four thousand, thirty-three".