494764020 has 144 divisors (see below), whose sum is σ = 1553872320. Its totient is φ = 127346688.

The previous prime is 494764019. The next prime is 494764021. The reversal of 494764020 is 20467494.

494764020 is a `hidden beast` number, since 4 + 9 + 4 + 7 + 640 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (494764019) and next prime (494764021).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494764021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 750451 + ... + 751109.

It is an arithmetic number, because the mean of its divisors is an integer number (10790780).

Almost surely, 2^494764020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 494764020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (776936160).

494764020 is an abundant number, since it is smaller than the sum of its proper divisors (1059108300).

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

494764020 is a wasteful number, since it uses less digits than its factorization.

494764020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814 (or 809 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 494764020 is about 22243.2915729664. The cubic root of 494764020 is about 790.9202649666.

The spelling of 494764020 in words is "four hundred ninety-four million, seven hundred sixty-four thousand, twenty".