40190378 has 4 divisors (see below), whose sum is σ = 60285570. Its totient is φ = 20095188.

The previous prime is 40190357. The next prime is 40190383. The reversal of 40190378 is 87309104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 38402809 + 1787569 = 6197^2 + 1337^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10047593 + ... + 10047596.

Almost surely, 2^40190378 is an apocalyptic number.

40190378 is a deficient number, since it is larger than the sum of its proper divisors (20095192).

40190378 is a wasteful number, since it uses less digits than its factorization.

40190378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20095191.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 40190378 is about 6339.5881569705. The cubic root of 40190378 is about 342.5369004944.

The spelling of 40190378 in words is "forty million, one hundred ninety thousand, three hundred seventy-eight".