40405496 has 8 divisors (see below), whose sum is σ = 75760320. Its totient is φ = 20202744.

The previous prime is 40405471. The next prime is 40405529. The reversal of 40405496 is 69450404.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525336 + ... + 2525351.

It is an arithmetic number, because the mean of its divisors is an integer number (9470040).

Almost surely, 2^40405496 is an apocalyptic number.

It is an amenable number.

40405496 is a deficient number, since it is larger than the sum of its proper divisors (35354824).

40405496 is a wasteful number, since it uses less digits than its factorization.

40405496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050693 (or 5050689 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 40405496 is about 6356.5317587502. The cubic root of 40405496 is about 343.1469534385.

The spelling of 40405496 in words is "forty million, four hundred five thousand, four hundred ninety-six".