40530520 has 16 divisors (see below), whose sum is σ = 91193760. Its totient is φ = 16212192.

The previous prime is 40530517. The next prime is 40530541. The reversal of 40530520 is 2503504.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506592 + ... + 506671.

It is an arithmetic number, because the mean of its divisors is an integer number (5699610).

Almost surely, 2^40530520 is an apocalyptic number.

40530520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40530520 is an abundant number, since it is smaller than the sum of its proper divisors (50663240).

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

40530520 is a wasteful number, since it uses less digits than its factorization.

40530520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013274 (or 1013270 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 40530520 is about 6366.3584567632. The cubic root of 40530520 is about 343.5005145104.

The spelling of 40530520 in words is "forty million, five hundred thirty thousand, five hundred twenty".