1490643000 has 640 divisors, whose sum is σ = 6523545600. Its totient is φ = 308448000.

The previous prime is 1490642971. The next prime is 1490643017. The reversal of 1490643000 is 3460941.

1490643000 is a `hidden beast` number, since 14 + 9 + 0 + 643 + 0 + 0 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 6236881 + ... + 6237119.

It is an arithmetic number, because the mean of its divisors is an integer number (10193040).

Almost surely, 2^1490643000 is an apocalyptic number.

1490643000 is a gapful number since it is divisible by the number (10) 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 1490643000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3261772800).

1490643000 is an abundant number, since it is smaller than the sum of its proper divisors (5032902600).

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

1490643000 is a wasteful number, since it uses less digits than its factorization.

1490643000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1490643000 is about 38608.8461366045. The cubic root of 1490643000 is about 1142.3290335303.

The spelling of 1490643000 in words is "one billion, four hundred ninety million, six hundred forty-three thousand".