492989490 has 120 divisors (see below), whose sum is σ = 1542141612. Its totient is φ = 112674240.

The previous prime is 492989461. The next prime is 492989501. The reversal of 492989490 is 94989294.

It can be written as a sum of positive squares in 2 ways, for example, as 466948881 + 26040609 = 21609^2 + 5103^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 33480 + ... + 45900.

Almost surely, 2^492989490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 492989490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (771070806).

492989490 is an abundant number, since it is smaller than the sum of its proper divisors (1049152122).

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

492989490 is a wasteful number, since it uses less digits than its factorization.

492989490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12454 (or 12438 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The square root of 492989490 is about 22203.3666366162. The cubic root of 492989490 is about 789.9735557030.

The spelling of 492989490 in words is "four hundred ninety-two million, nine hundred eighty-nine thousand, four hundred ninety".