1490543240 has 64 divisors (see below), whose sum is σ = 3471552000. Its totient is φ = 575377920.

The previous prime is 1490543239. The next prime is 1490543279. The reversal of 1490543240 is 423450941.

It is a junction number, because it is equal to n+sod(n) for n = 1490543197 and 1490543206.

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, 505691 + ... + 508629.

It is an arithmetic number, because the mean of its divisors is an integer number (54243000).

Almost surely, 2^1490543240 is an apocalyptic number.

1490543240 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 1490543240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1735776000).

1490543240 is an abundant number, since it is smaller than the sum of its proper divisors (1981008760).

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

1490543240 is a wasteful number, since it uses less digits than its factorization.

1490543240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3390 (or 3386 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1490543240 is about 38607.5541830870. The cubic root of 1490543240 is about 1142.3035498326.

The spelling of 1490543240 in words is "one billion, four hundred ninety million, five hundred forty-three thousand, two hundred forty".