40780530 has 64 divisors (see below), whose sum is σ = 124289280. Its totient is φ = 9320832.

The previous prime is 40780529. The next prime is 40780543. The reversal of 40780530 is 3508704.

40780530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40780494 and 40780503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8899 + ... + 12678.

It is an arithmetic number, because the mean of its divisors is an integer number (1942020).

Almost surely, 2^40780530 is an apocalyptic number.

40780530 is an abundant number, since it is smaller than the sum of its proper divisors (83508750).

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

40780530 is a wasteful number, since it uses less digits than its factorization.

40780530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21600 (or 21594 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 40780530 is about 6385.9635138325. The cubic root of 40780530 is about 344.2053544468.

The spelling of 40780530 in words is "forty million, seven hundred eighty thousand, five hundred thirty".