400400432411 has 32 divisors (see below), whose sum is σ = 497927884800. Its totient is φ = 314202810240.

The previous prime is 400400432401. The next prime is 400400432423. The reversal of 400400432411 is 114234004004.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 400400432411 - 2⁶ = 400400432347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400400432401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2854721 + ... + 2991693.

It is an arithmetic number, because the mean of its divisors is an integer number (15560246400).

Almost surely, 2^400400432411 is an apocalyptic number.

400400432411 is a deficient number, since it is larger than the sum of its proper divisors (97527452389).

400400432411 is a wasteful number, since it uses less digits than its factorization.

400400432411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137739.

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

Adding to 400400432411 its reverse (114234004004), we get a palindrome (514634436415).

The spelling of 400400432411 in words is "four hundred billion, four hundred million, four hundred thirty-two thousand, four hundred eleven".