40651378 has 8 divisors (see below), whose sum is σ = 61004160. Its totient is φ = 20316660.

The previous prime is 40651361. The next prime is 40651409. The reversal of 40651378 is 87315604.

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, 6163 + ... + 10921.

It is an arithmetic number, because the mean of its divisors is an integer number (7625520).

Almost surely, 2^40651378 is an apocalyptic number.

40651378 is a deficient number, since it is larger than the sum of its proper divisors (20352782).

40651378 is a wasteful number, since it uses less digits than its factorization.

40651378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9032.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 40651378 is about 6375.8433167699. The cubic root of 40651378 is about 343.8416038844.

The spelling of 40651378 in words is "forty million, six hundred fifty-one thousand, three hundred seventy-eight".