40543530 has 32 divisors (see below), whose sum is σ = 102427200. Its totient is φ = 10242432.

The previous prime is 40543513. The next prime is 40543541. The reversal of 40543530 is 3534504.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 40543530.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34995 + ... + 36134.

It is an arithmetic number, because the mean of its divisors is an integer number (3200850).

Almost surely, 2^40543530 is an apocalyptic number.

40543530 is an abundant number, since it is smaller than the sum of its proper divisors (61883670).

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

40543530 is a wasteful number, since it uses less digits than its factorization.

40543530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71158.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 40543530 is about 6367.3801519934. The cubic root of 40543530 is about 343.5372642948.

The spelling of 40543530 in words is "forty million, five hundred forty-three thousand, five hundred thirty".