494021420 has 24 divisors (see below), whose sum is σ = 1044414000. Its totient is φ = 196281152.

The previous prime is 494021419. The next prime is 494021449. The reversal of 494021420 is 24120494.

It is a self number, because there is not a number n which added to its sum of digits gives 494021420.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79910 + ... + 85869.

It is an arithmetic number, because the mean of its divisors is an integer number (43517250).

Almost surely, 2^494021420 is an apocalyptic number.

It is an amenable number.

494021420 is an abundant number, since it is smaller than the sum of its proper divisors (550392580).

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

494021420 is a wasteful number, since it uses less digits than its factorization.

494021420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165937 (or 165935 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 494021420 is about 22226.5926313504. The cubic root of 494021420 is about 790.5243647943.

The spelling of 494021420 in words is "four hundred ninety-four million, twenty-one thousand, four hundred twenty".