1542193344 has 140 divisors (see below), whose sum is σ = 4588340328. Its totient is φ = 512179200.

The previous prime is 1542193333. The next prime is 1542193361. The reversal of 1542193344 is 4433912451.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1542193299 and 1542193308.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2700579 + ... + 2701149.

Almost surely, 2^1542193344 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 1542193344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2294170164).

1542193344 is an abundant number, since it is smaller than the sum of its proper divisors (3046146984).

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

1542193344 is an equidigital number, since it uses as much as digits as its factorization.

1542193344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116 (or 1097 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 1542193344 is about 39270.7695875698. The cubic root of 1542193344 is about 1155.3483314362.

The spelling of 1542193344 in words is "one billion, five hundred forty-two million, one hundred ninety-three thousand, three hundred forty-four".