1542291456 has 128 divisors (see below), whose sum is σ = 4262396400. Its totient is φ = 495452160.

The previous prime is 1542291451. The next prime is 1542291463. The reversal of 1542291456 is 6541922451.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1542291451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2850546 + ... + 2851086.

Almost surely, 2^1542291456 is an apocalyptic number.

1542291456 is a gapful number since it is divisible by the number (16) 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 1542291456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2131198200).

1542291456 is an abundant number, since it is smaller than the sum of its proper divisors (2720104944).

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

1542291456 is an frugal number, since it uses more digits than its factorization.

1542291456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603 (or 575 counting only the distinct ones).

The product of its digits is 86400, while the sum is 39.

The square root of 1542291456 is about 39272.0187410833. The cubic root of 1542291456 is about 1155.3728314192.

The spelling of 1542291456 in words is "one billion, five hundred forty-two million, two hundred ninety-one thousand, four hundred fifty-six".