40450438 has 8 divisors (see below), whose sum is σ = 69343632. Its totient is φ = 17335896.

The previous prime is 40450433. The next prime is 40450439. The reversal of 40450438 is 83405404.

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

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40450433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1444645 + ... + 1444672.

It is an arithmetic number, because the mean of its divisors is an integer number (8667954).

Almost surely, 2^40450438 is an apocalyptic number.

40450438 is a deficient number, since it is larger than the sum of its proper divisors (28893194).

40450438 is a wasteful number, since it uses less digits than its factorization.

40450438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2889326.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 40450438 is about 6360.0658801619. The cubic root of 40450438 is about 343.2741308253.

The spelling of 40450438 in words is "forty million, four hundred fifty thousand, four hundred thirty-eight".