494855040 has 128 divisors (see below), whose sum is σ = 1670245920. Its totient is φ = 124190720.

The previous prime is 494855029. The next prime is 494855083. The reversal of 494855040 is 40558494.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×494855040² = 489763021226803200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 494855040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25060 + ... + 40220.

Almost surely, 2^494855040 is an apocalyptic number.

494855040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 494855040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (835122960).

494855040 is an abundant number, since it is smaller than the sum of its proper divisors (1175390880).

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

494855040 is a wasteful number, since it uses less digits than its factorization.

494855040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15200 (or 15188 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 494855040 is about 22245.3374890110. The cubic root of 494855040 is about 790.9687629343.

The spelling of 494855040 in words is "four hundred ninety-four million, eight hundred fifty-five thousand, forty".