490801620 has 24 divisors (see below), whose sum is σ = 1374244704. Its totient is φ = 130880416.

The previous prime is 490801609. The next prime is 490801621. The reversal of 490801620 is 26108094.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490801621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4089954 + ... + 4090073.

It is an arithmetic number, because the mean of its divisors is an integer number (57260196).

Almost surely, 2^490801620 is an apocalyptic number.

It is an amenable number.

490801620 is an abundant number, since it is smaller than the sum of its proper divisors (883443084).

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

490801620 is a wasteful number, since it uses less digits than its factorization.

490801620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8180039 (or 8180037 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 490801620 is about 22154.0429718821. The cubic root of 490801620 is about 788.8031977133.

The spelling of 490801620 in words is "four hundred ninety million, eight hundred one thousand, six hundred twenty".