40534400 has 96 divisors (see below), whose sum is σ = 102448800. Its totient is φ = 15841280.

The previous prime is 40534399. The next prime is 40534411. The reversal of 40534400 is 443504.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169481 + ... + 169719.

It is an arithmetic number, because the mean of its divisors is an integer number (1067175).

Almost surely, 2^40534400 is an apocalyptic number.

40534400 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 40534400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51224400).

40534400 is an abundant number, since it is smaller than the sum of its proper divisors (61914400).

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

40534400 is a wasteful number, since it uses less digits than its factorization.

40534400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 40534400 is about 6366.6631762643. The cubic root of 40534400 is about 343.5114752997.

Adding to 40534400 its reverse (443504), we get a palindrome (40977904).

The spelling of 40534400 in words is "forty million, five hundred thirty-four thousand, four hundred".