40545330 has 32 divisors (see below), whose sum is σ = 111210624. Its totient is φ = 9267456.

The previous prime is 40545317. The next prime is 40545341. The reversal of 40545330 is 3354504.

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 40545330.

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, 96327 + ... + 96746.

It is an arithmetic number, because the mean of its divisors is an integer number (3475332).

Almost surely, 2^40545330 is an apocalyptic number.

40545330 is an abundant number, since it is smaller than the sum of its proper divisors (70665294).

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

40545330 is a wasteful number, since it uses less digits than its factorization.

40545330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193090.

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

The square root of 40545330 is about 6367.5214958412. The cubic root of 40545330 is about 343.5423481962.

Adding to 40545330 its reverse (3354504), we get a palindrome (43899834).

The spelling of 40545330 in words is "forty million, five hundred forty-five thousand, three hundred thirty".