405896272044 has 12 divisors (see below), whose sum is σ = 947091301464. Its totient is φ = 135298757344.

The previous prime is 405896272027. The next prime is 405896272057. The reversal of 405896272044 is 440272698504.

It is a tau number, because it is divible by the number of its divisors (12).

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, 16912344657 + ... + 16912344680.

It is an arithmetic number, because the mean of its divisors is an integer number (78924275122).

Almost surely, 2^405896272044 is an apocalyptic number.

It is an amenable number.

405896272044 is an abundant number, since it is smaller than the sum of its proper divisors (541195029420).

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

405896272044 is a wasteful number, since it uses less digits than its factorization.

405896272044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33824689344 (or 33824689342 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 51.

The spelling of 405896272044 in words is "four hundred five billion, eight hundred ninety-six million, two hundred seventy-two thousand, forty-four".