1542499488 has 144 divisors (see below), whose sum is σ = 4794806016. Its totient is φ = 468264960.

The previous prime is 1542499487. The next prime is 1542499507. The reversal of 1542499488 is 8849942451.

It is a happy number.

1542499488 is a `hidden beast` number, since 1 + 54 + 24 + 99 + 488 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (1542499487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146695 + ... + 156857.

It is an arithmetic number, because the mean of its divisors is an integer number (33297264).

Almost surely, 2^1542499488 is an apocalyptic number.

1542499488 is a gapful number since it is divisible by the number (18) 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 1542499488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2397403008).

1542499488 is an abundant number, since it is smaller than the sum of its proper divisors (3252306528).

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

1542499488 is a wasteful number, since it uses less digits than its factorization.

1542499488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10227 (or 10216 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The square root of 1542499488 is about 39274.6672551150. The cubic root of 1542499488 is about 1155.4247765761.

The spelling of 1542499488 in words is "one billion, five hundred forty-two million, four hundred ninety-nine thousand, four hundred eighty-eight".