40643914 has 8 divisors (see below), whose sum is σ = 62932608. Its totient is φ = 19666380.

The previous prime is 40643857. The next prime is 40643917. The reversal of 40643914 is 41934604.

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

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (40643917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327712 + ... + 327835.

It is an arithmetic number, because the mean of its divisors is an integer number (7866576).

Almost surely, 2^40643914 is an apocalyptic number.

40643914 is a deficient number, since it is larger than the sum of its proper divisors (22288694).

40643914 is a wasteful number, since it uses less digits than its factorization.

40643914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655580.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 40643914 is about 6375.2579555654. The cubic root of 40643914 is about 343.8205583426.

The spelling of 40643914 in words is "forty million, six hundred forty-three thousand, nine hundred fourteen".