40147530 has 32 divisors (see below), whose sum is σ = 96565824. Its totient is φ = 10682496.

The previous prime is 40147529. The next prime is 40147543. The reversal of 40147530 is 3574104.

It is a super-2 number, since 2×40147530² = 3223648330201800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40147530.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15702 + ... + 18078.

It is an arithmetic number, because the mean of its divisors is an integer number (3017682).

Almost surely, 2^40147530 is an apocalyptic number.

40147530 is an abundant number, since it is smaller than the sum of its proper divisors (56418294).

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

40147530 is a wasteful number, since it uses less digits than its factorization.

40147530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2950.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 40147530 is about 6336.2078564391. The cubic root of 40147530 is about 342.4151280637.

The spelling of 40147530 in words is "forty million, one hundred forty-seven thousand, five hundred thirty".