40378443 has 8 divisors (see below), whose sum is σ = 61529088. Its totient is φ = 23073384.

The previous prime is 40378427. The next prime is 40378447. The reversal of 40378443 is 34487304.

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

It is not a de Polignac number, because 40378443 - 2⁴ = 40378427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40378447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 961371 + ... + 961412.

It is an arithmetic number, because the mean of its divisors is an integer number (7691136).

Almost surely, 2^40378443 is an apocalyptic number.

40378443 is a deficient number, since it is larger than the sum of its proper divisors (21150645).

40378443 is a wasteful number, since it uses less digits than its factorization.

40378443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922793.

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 40378443 is about 6354.4034338402. The cubic root of 40378443 is about 343.0703530744.

The spelling of 40378443 in words is "forty million, three hundred seventy-eight thousand, four hundred forty-three".