10400421434 has 8 divisors (see below), whose sum is σ = 16800680820. Its totient is φ = 4800194496.

The previous prime is 10400421433. The next prime is 10400421463. The reversal of 10400421434 is 43412400401.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7309395025 + 3091026409 = 85495^2 + 55597^2 .

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

It is not an unprimeable number, because it can be changed into a prime (10400421433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200008079 + ... + 200008130.

Almost surely, 2^10400421434 is an apocalyptic number.

10400421434 is a deficient number, since it is larger than the sum of its proper divisors (6400259386).

10400421434 is a wasteful number, since it uses less digits than its factorization.

10400421434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400016224.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 10400421434 its reverse (43412400401), we get a palindrome (53812821835).

The spelling of 10400421434 in words is "ten billion, four hundred million, four hundred twenty-one thousand, four hundred thirty-four".