400085672 has 16 divisors (see below), whose sum is σ = 857326560. Its totient is φ = 171465264.

The previous prime is 400085669. The next prime is 400085689. The reversal of 400085672 is 276580004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3572138 + ... + 3572249.

It is an arithmetic number, because the mean of its divisors is an integer number (53582910).

Almost surely, 2^400085672 is an apocalyptic number.

It is an amenable number.

400085672 is an abundant number, since it is smaller than the sum of its proper divisors (457240888).

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

400085672 is a wasteful number, since it uses less digits than its factorization.

400085672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7144400 (or 7144396 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 400085672 is about 20002.1416853296. The cubic root of 400085672 is about 736.8588990308.

The spelling of 400085672 in words is "four hundred million, eighty-five thousand, six hundred seventy-two".