40016380 has 24 divisors (see below), whose sum is σ = 84904848. Its totient is φ = 15840768.

The previous prime is 40016357. The next prime is 40016393. The reversal of 40016380 is 8361004.

40016380 is a modest number, since divided by 16380 gives 40 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8374 + ... + 12253.

It is an arithmetic number, because the mean of its divisors is an integer number (3537702).

Almost surely, 2^40016380 is an apocalyptic number.

It is an amenable number.

40016380 is an abundant number, since it is smaller than the sum of its proper divisors (44888468).

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

40016380 is a wasteful number, since it uses less digits than its factorization.

40016380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20733 (or 20731 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 40016380 is about 6325.8501404950. The cubic root of 40016380 is about 342.0418653080.

Adding to 40016380 its reverse (8361004), we get a palindrome (48377384).

The spelling of 40016380 in words is "forty million, sixteen thousand, three hundred eighty".