400470176421 has 24 divisors (see below), whose sum is σ = 661110413184. Its totient is φ = 228834289440.

The previous prime is 400470176419. The next prime is 400470176429. The reversal of 400470176421 is 124671074004.

It is a happy number.

400470176421 is a `hidden beast` number, since 4 + 0 + 0 + 4 + 7 + 0 + 1 + 7 + 642 + 1 = 666.

It is not a de Polignac number, because 400470176421 - 2¹ = 400470176419 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400470176429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4246240 + ... + 4339526.

It is an arithmetic number, because the mean of its divisors is an integer number (27546267216).

Almost surely, 2^400470176421 is an apocalyptic number.

It is an amenable number.

400470176421 is a deficient number, since it is larger than the sum of its proper divisors (260640236763).

400470176421 is a wasteful number, since it uses less digits than its factorization.

400470176421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161441 (or 161438 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The spelling of 400470176421 in words is "four hundred billion, four hundred seventy million, one hundred seventy-six thousand, four hundred twenty-one".