40401696 has 24 divisors (see below), whose sum is σ = 106054704. Its totient is φ = 13467200.

The previous prime is 40401689. The next prime is 40401701. The reversal of 40401696 is 69610404.

It is a tau number, because it is divible by the number of its divisors (24).

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 in 3 ways as a sum of consecutive naturals, for example, 210330 + ... + 210521.

It is an arithmetic number, because the mean of its divisors is an integer number (4418946).

Almost surely, 2^40401696 is an apocalyptic number.

It is an amenable number.

40401696 is an abundant number, since it is smaller than the sum of its proper divisors (65653008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40401696 is a wasteful number, since it uses less digits than its factorization.

40401696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420864 (or 420856 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 40401696 is about 6356.2328465845. The cubic root of 40401696 is about 343.1361958318.

The spelling of 40401696 in words is "forty million, four hundred one thousand, six hundred ninety-six".