400415470 has 64 divisors (see below), whose sum is σ = 917723520. Its totient is φ = 122347008.

The previous prime is 400415453. The next prime is 400415473. The reversal of 400415470 is 74514004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400415473) 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, 18804 + ... + 33976.

It is an arithmetic number, because the mean of its divisors is an integer number (14339430).

Almost surely, 2^400415470 is an apocalyptic number.

400415470 is an abundant number, since it is smaller than the sum of its proper divisors (517308050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400415470 is a wasteful number, since it uses less digits than its factorization.

400415470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15229.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 400415470 is about 20010.3840542854. The cubic root of 400415470 is about 737.0613122179.

Adding to 400415470 its reverse (74514004), we get a palindrome (474929474).

The spelling of 400415470 in words is "four hundred million, four hundred fifteen thousand, four hundred seventy".