40143348 has 72 divisors (see below), whose sum is σ = 118372800. Its totient is φ = 11466000.

The previous prime is 40143347. The next prime is 40143373. The reversal of 40143348 is 84334104.

It is a super-2 number, since 2×40143348² = 3222976777298208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40143343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10723 + ... + 13973.

Almost surely, 2^40143348 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 40143348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59186400).

40143348 is an abundant number, since it is smaller than the sum of its proper divisors (78229452).

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

40143348 is a wasteful number, since it uses less digits than its factorization.

40143348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3282 (or 3263 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 40143348 is about 6335.8778397314. The cubic root of 40143348 is about 342.4032383344.

The spelling of 40143348 in words is "forty million, one hundred forty-three thousand, three hundred forty-eight".