40378 has 8 divisors (see below), whose sum is σ = 65268. Its totient is φ = 18624.

The previous prime is 40361. The next prime is 40387. The reversal of 40378 is 87304.

It can be written as a sum of positive squares in 2 ways, for example, as 33489 + 6889 = 183^2 + 83^2 .

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

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, 751 + ... + 802.

2⁴⁰³⁷⁸ is an apocalyptic number.

40378 is a deficient number, since it is larger than the sum of its proper divisors (24890).

40378 is a wasteful number, since it uses less digits than its factorization.

40378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 40378 is about 200.9427779245. The cubic root of 40378 is about 34.3069098439.

The spelling of 40378 in words is "forty thousand, three hundred seventy-eight".