20402411004 has 48 divisors (see below), whose sum is σ = 55194935040. Its totient is φ = 6505115760.

The previous prime is 20402410967. The next prime is 20402411011. The reversal of 20402411004 is 40011420402.

It is a super-3 number, since 3×20402411004³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4104282 + ... + 4109249.

It is an arithmetic number, because the mean of its divisors is an integer number (1149894480).

Almost surely, 2^20402411004 is an apocalyptic number.

It is an amenable number.

20402411004 is an abundant number, since it is smaller than the sum of its proper divisors (34792524036).

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

20402411004 is a wasteful number, since it uses less digits than its factorization.

20402411004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8213567 (or 8213559 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20402411004 its reverse (40011420402), we get a palindrome (60413831406).

The spelling of 20402411004 in words is "twenty billion, four hundred two million, four hundred eleven thousand, four".