400131470 has 16 divisors (see below), whose sum is σ = 721677600. Its totient is φ = 159732384.

The previous prime is 400131467. The next prime is 400131481. The reversal of 400131470 is 74131004.

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, 34745 + ... + 44804.

It is an arithmetic number, because the mean of its divisors is an integer number (45104850).

Almost surely, 2^400131470 is an apocalyptic number.

400131470 is a deficient number, since it is larger than the sum of its proper divisors (321546130).

400131470 is a wasteful number, since it uses less digits than its factorization.

400131470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80059.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 400131470 is about 20003.2864799762. The cubic root of 400131470 is about 736.8870141560.

Adding to 400131470 its reverse (74131004), we get a palindrome (474262474).

The spelling of 400131470 in words is "four hundred million, one hundred thirty-one thousand, four hundred seventy".