400894260 has 192 divisors, whose sum is σ = 1287014400. Its totient is φ = 92510208.

The previous prime is 400894259. The next prime is 400894267. The reversal of 400894260 is 62498004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400894267) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 836701 + ... + 837179.

It is an arithmetic number, because the mean of its divisors is an integer number (6703200).

Almost surely, 2^400894260 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400894260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (643507200).

400894260 is an abundant number, since it is smaller than the sum of its proper divisors (886120140).

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

400894260 is a wasteful number, since it uses less digits than its factorization.

400894260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570 (or 568 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 400894260 is about 20022.3440186208. The cubic root of 400894260 is about 737.3549713864.

The spelling of 400894260 in words is "four hundred million, eight hundred ninety-four thousand, two hundred sixty".