40585400 has 48 divisors (see below), whose sum is σ = 94811640. Its totient is φ = 16156800.

The previous prime is 40585373. The next prime is 40585403. The reversal of 40585400 is 458504.

It is a self number, because there is not a number n which added to its sum of digits gives 40585400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40585403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61070 + ... + 61730.

Almost surely, 2^40585400 is an apocalyptic number.

40585400 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 40585400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47405820).

40585400 is an abundant number, since it is smaller than the sum of its proper divisors (54226240).

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

40585400 is a wasteful number, since it uses less digits than its factorization.

40585400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984 (or 975 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 40585400 is about 6370.6671550160. The cubic root of 40585400 is about 343.6554825538.

The spelling of 40585400 in words is "forty million, five hundred eighty-five thousand, four hundred".