1490815549440 has 1600 divisors, whose sum is σ = 6577333488000. Its totient is φ = 315277443072.

The previous prime is 1490815549417. The next prime is 1490815549471. The reversal of 1490815549440 is 449455180941.

1490815549440 is a `hidden beast` number, since 1 + 4 + 9 + 0 + 8 + 155 + 49 + 440 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 25268060131 + ... + 25268060189.

It is an arithmetic number, because the mean of its divisors is an integer number (4110833430).

Almost surely, 2^{1490815549440} is an apocalyptic number.

1490815549440 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 1490815549440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3288666744000).

1490815549440 is an abundant number, since it is smaller than the sum of its proper divisors (5086517938560).

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

1490815549440 is an frugal number, since it uses more digits than its factorization.

1490815549440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 1490815549440 in words is "one trillion, four hundred ninety billion, eight hundred fifteen million, five hundred forty-nine thousand, four hundred forty".