1542691248 has 120 divisors (see below), whose sum is σ = 4838595072. Its totient is φ = 414815232.

The previous prime is 1542691211. The next prime is 1542691327. The reversal of 1542691248 is 8421962451.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89161 + ... + 105047.

Almost surely, 2^1542691248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1542691248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2419297536).

1542691248 is an abundant number, since it is smaller than the sum of its proper divisors (3295903824).

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

1542691248 is a wasteful number, since it uses less digits than its factorization.

1542691248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15939 (or 15916 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 1542691248 is about 39277.1084475423. The cubic root of 1542691248 is about 1155.4726545118.

The spelling of 1542691248 in words is "one billion, five hundred forty-two million, six hundred ninety-one thousand, two hundred forty-eight".