1490400000 has 540 divisors, whose sum is σ = 5796285264. Its totient is φ = 380160000.

The previous prime is 1490399983. The next prime is 1490400011. The reversal of 1490400000 is 40941.

It is a tau number, because it is divible by the number of its divisors (540).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 64799989 + ... + 64800011.

Almost surely, 2^1490400000 is an apocalyptic number.

1490400000 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 1490400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2898142632).

1490400000 is an abundant number, since it is smaller than the sum of its proper divisors (4305885264).

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

1490400000 is an frugal number, since it uses more digits than its factorization.

1490400000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76 (or 33 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1490400000 is about 38605.6990611490. The cubic root of 1490400000 is about 1142.2669571780.

Adding to 1490400000 its reverse (40941), we get a palindrome (1490440941).

The spelling of 1490400000 in words is "one billion, four hundred ninety million, four hundred thousand".