403205509488 has 80 divisors (see below), whose sum is σ = 1045207807776. Its totient is φ = 133938954240.

The previous prime is 403205509471. The next prime is 403205509489. The reversal of 403205509488 is 884905502304.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403205509489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16818406 + ... + 16842362.

Almost surely, 2^403205509488 is an apocalyptic number.

403205509488 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

403205509488 is an abundant number, since it is smaller than the sum of its proper divisors (642002298288).

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

403205509488 is a wasteful number, since it uses less digits than its factorization.

403205509488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25162 (or 25156 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 403205509488 in words is "four hundred three billion, two hundred five million, five hundred nine thousand, four hundred eighty-eight".