10421400234 has 32 divisors (see below), whose sum is σ = 24856012800. Its totient is φ = 2848084272.

The previous prime is 10421400191. The next prime is 10421400271. The reversal of 10421400234 is 43200412401.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 10421400234.

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, 5393134 + ... + 5395065.

It is an arithmetic number, because the mean of its divisors is an integer number (776750400).

Almost surely, 2^10421400234 is an apocalyptic number.

10421400234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

10421400234 is an abundant number, since it is smaller than the sum of its proper divisors (14434612566).

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

10421400234 is a wasteful number, since it uses less digits than its factorization.

10421400234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10788234.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 10421400234 its reverse (43200412401), we get a palindrome (53621812635).

The spelling of 10421400234 in words is "ten billion, four hundred twenty-one million, four hundred thousand, two hundred thirty-four".