40144200 has 96 divisors (see below), whose sum is σ = 129902400. Its totient is φ = 10236160.

The previous prime is 40144183. The next prime is 40144229. The reversal of 40144200 is 244104.

It is a super-2 number, since 2×40144200² = 3223113587280000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 40144200.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12346 + ... + 15254.

It is an arithmetic number, because the mean of its divisors is an integer number (1353150).

Almost surely, 2^40144200 is an apocalyptic number.

40144200 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 40144200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64951200).

40144200 is an abundant number, since it is smaller than the sum of its proper divisors (89758200).

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

40144200 is a wasteful number, since it uses less digits than its factorization.

40144200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951 (or 2942 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 40144200 is about 6335.9450755195. The cubic root of 40144200 is about 342.4056606992.

Adding to 40144200 its reverse (244104), we get a palindrome (40388304).

The spelling of 40144200 in words is "forty million, one hundred forty-four thousand, two hundred".