10400434012 has 24 divisors (see below), whose sum is σ = 19635010416. Its totient is φ = 4801974528.

The previous prime is 10400434003. The next prime is 10400434021. The reversal of 10400434012 is 21043400401.

It is an interprime number because it is at equal distance from previous prime (10400434003) and next prime (10400434021).

It is a super-2 number, since 2×10400434012² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1439298 + ... + 1446505.

It is an arithmetic number, because the mean of its divisors is an integer number (818125434).

Almost surely, 2^10400434012 is an apocalyptic number.

It is an amenable number.

10400434012 is a deficient number, since it is larger than the sum of its proper divisors (9234576404).

10400434012 is a wasteful number, since it uses less digits than its factorization.

10400434012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885877 (or 2885875 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 10400434012 its reverse (21043400401), we get a palindrome (31443834413).

The spelling of 10400434012 in words is "ten billion, four hundred million, four hundred thirty-four thousand, twelve".