403609976946 has 48 divisors (see below), whose sum is σ = 974284841088. Its totient is φ = 119703794400.

The previous prime is 403609976921. The next prime is 403609976947. The reversal of 403609976946 is 649679906304.

It is not an unprimeable number, because it can be changed into a prime (403609976947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21676165 + ... + 21694776.

It is an arithmetic number, because the mean of its divisors is an integer number (20297600856).

Almost surely, 2^403609976946 is an apocalyptic number.

403609976946 is an abundant number, since it is smaller than the sum of its proper divisors (570674864142).

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

403609976946 is a wasteful number, since it uses less digits than its factorization.

403609976946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43371007 (or 43371004 counting only the distinct ones).

The product of its (nonzero) digits is 52907904, while the sum is 63.

The spelling of 403609976946 in words is "four hundred three billion, six hundred nine million, nine hundred seventy-six thousand, nine hundred forty-six".