40501646 has 16 divisors (see below), whose sum is σ = 62270208. Its totient is φ = 19749600.

The previous prime is 40501631. The next prime is 40501649. The reversal of 40501646 is 64610504.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40501649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18131 + ... + 20241.

It is an arithmetic number, because the mean of its divisors is an integer number (3891888).

Almost surely, 2^40501646 is an apocalyptic number.

40501646 is a deficient number, since it is larger than the sum of its proper divisors (21768562).

40501646 is a wasteful number, since it uses less digits than its factorization.

40501646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 40501646 is about 6364.0903513385. The cubic root of 40501646 is about 343.4189250478.

The spelling of 40501646 in words is "forty million, five hundred one thousand, six hundred forty-six".