40613378 has 8 divisors (see below), whose sum is σ = 65606268. Its totient is φ = 18744624.

The previous prime is 40613341. The next prime is 40613381. The reversal of 40613378 is 87331604.

It can be written as a sum of positive squares in 2 ways, for example, as 34023889 + 6589489 = 5833^2 + 2567^2 .

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

It is a Curzon 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, 781001 + ... + 781052.

Almost surely, 2^40613378 is an apocalyptic number.

40613378 is a deficient number, since it is larger than the sum of its proper divisors (24992890).

40613378 is a wasteful number, since it uses less digits than its factorization.

40613378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562068.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 40613378 is about 6372.8626220875. The cubic root of 40613378 is about 343.7344320002.

The spelling of 40613378 in words is "forty million, six hundred thirteen thousand, three hundred seventy-eight".