40530045 has 8 divisors (see below), whose sum is σ = 64848096. Its totient is φ = 21616016.

The previous prime is 40530043. The next prime is 40530067. The reversal of 40530045 is 54003504.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40530045 - 2¹ = 40530043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40530041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1350987 + ... + 1351016.

It is an arithmetic number, because the mean of its divisors is an integer number (8106012).

Almost surely, 2^40530045 is an apocalyptic number.

It is an amenable number.

40530045 is a deficient number, since it is larger than the sum of its proper divisors (24318051).

40530045 is a wasteful number, since it uses less digits than its factorization.

40530045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2702011.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 40530045 is about 6366.3211511830. The cubic root of 40530045 is about 343.4991726132.

Adding to 40530045 its reverse (54003504), we get a palindrome (94533549).

The spelling of 40530045 in words is "forty million, five hundred thirty thousand, forty-five".