304401020490 has 160 divisors (see below), whose sum is σ = 944692619904. Its totient is φ = 68888361600.

The previous prime is 304401020437. The next prime is 304401020491. The reversal of 304401020490 is 94020104403.

304401020490 is a `hidden beast` number, since 3 + 0 + 440 + 10 + 204 + 9 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (304401020491) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 306897 + ... + 838443.

Almost surely, 2^304401020490 is an apocalyptic number.

304401020490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 304401020490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (472346309952).

304401020490 is an abundant number, since it is smaller than the sum of its proper divisors (640291599414).

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

304401020490 is a wasteful number, since it uses less digits than its factorization.

304401020490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531674 (or 531665 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 304401020490 its reverse (94020104403), we get a palindrome (398421124893).

The spelling of 304401020490 in words is "three hundred four billion, four hundred one million, twenty thousand, four hundred ninety".