1153728642 has 32 divisors (see below), whose sum is σ = 2525313600. Its totient is φ = 348491520.

The previous prime is 1153728619. The next prime is 1153728661. The reversal of 1153728642 is 2468273511.

It is a self number, because there is not a number n which added to its sum of digits gives 1153728642.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7267 + ... + 48582.

It is an arithmetic number, because the mean of its divisors is an integer number (78916050).

Almost surely, 2^1153728642 is an apocalyptic number.

1153728642 is an abundant number, since it is smaller than the sum of its proper divisors (1371584958).

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

1153728642 is a wasteful number, since it uses less digits than its factorization.

1153728642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56178.

The product of its digits is 80640, while the sum is 39.

The square root of 1153728642 is about 33966.5812527549. The cubic root of 1153728642 is about 1048.8206386476.

The spelling of 1153728642 in words is "one billion, one hundred fifty-three million, seven hundred twenty-eight thousand, six hundred forty-two".