40390382 has 8 divisors (see below), whose sum is σ = 60809952. Its totient is φ = 20120400.

The previous prime is 40390379. The next prime is 40390391. The reversal of 40390382 is 28309304.

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

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, 36719 + ... + 37802.

It is an arithmetic number, because the mean of its divisors is an integer number (7601244).

Almost surely, 2^40390382 is an apocalyptic number.

40390382 is a deficient number, since it is larger than the sum of its proper divisors (20419570).

40390382 is a wasteful number, since it uses less digits than its factorization.

40390382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74794.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 40390382 is about 6355.3427916990. The cubic root of 40390382 is about 343.1041624788.

Adding to 40390382 its reverse (28309304), we get a palindrome (68699686).

The spelling of 40390382 in words is "forty million, three hundred ninety thousand, three hundred eighty-two".