400032360 has 192 divisors, whose sum is σ = 1600260480. Its totient is φ = 84395520.

The previous prime is 400032343. The next prime is 400032383. The reversal of 400032360 is 63230004.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26655 + ... + 38865.

It is an arithmetic number, because the mean of its divisors is an integer number (8334690).

Almost surely, 2^400032360 is an apocalyptic number.

400032360 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400032360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (800130240).

400032360 is an abundant number, since it is smaller than the sum of its proper divisors (1200228120).

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

400032360 is a wasteful number, since it uses less digits than its factorization.

400032360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12248 (or 12241 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 400032360 is about 20000.8089836386. The cubic root of 400032360 is about 736.8261684022.

Adding to 400032360 its reverse (63230004), we get a palindrome (463262364).

The spelling of 400032360 in words is "four hundred million, thirty-two thousand, three hundred sixty".