10420405400 has 48 divisors (see below), whose sum is σ = 24257766600. Its totient is φ = 4162945280.

The previous prime is 10420405397. The next prime is 10420405417. The reversal of 10420405400 is 450402401.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129599 + ... + 194001.

Almost surely, 2^10420405400 is an apocalyptic number.

10420405400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10420405400 is an abundant number, since it is smaller than the sum of its proper divisors (13837361200).

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

10420405400 is a wasteful number, since it uses less digits than its factorization.

10420405400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65228 (or 65219 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 10420405400 its reverse (450402401), we get a palindrome (10870807801).

The spelling of 10420405400 in words is "ten billion, four hundred twenty million, four hundred five thousand, four hundred".