490621000240 has 80 divisors (see below), whose sum is σ = 1303757982720. Its totient is φ = 168198992640.

The previous prime is 490621000231. The next prime is 490621000253. The reversal of 490621000240 is 42000126094.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 490621000199 and 490621000208.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8550045 + ... + 8607235.

It is an arithmetic number, because the mean of its divisors is an integer number (16296974784).

Almost surely, 2^490621000240 is an apocalyptic number.

490621000240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

490621000240 is an abundant number, since it is smaller than the sum of its proper divisors (813136982480).

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

490621000240 is a wasteful number, since it uses less digits than its factorization.

490621000240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72530 (or 72524 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 490621000240 in words is "four hundred ninety billion, six hundred twenty-one million, two hundred forty", and thus it is an aban number.