1540564892 has 6 divisors (see below), whose sum is σ = 2695988568. Its totient is φ = 770282444.

The previous prime is 1540564891. The next prime is 1540564901. The reversal of 1540564892 is 2984650451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540564891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192570608 + ... + 192570615.

It is an arithmetic number, because the mean of its divisors is an integer number (449331428).

Almost surely, 2^1540564892 is an apocalyptic number.

It is an amenable number.

1540564892 is a deficient number, since it is larger than the sum of its proper divisors (1155423676).

1540564892 is a wasteful number, since it uses less digits than its factorization.

1540564892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385141227 (or 385141225 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The square root of 1540564892 is about 39250.0304713258. The cubic root of 1540564892 is about 1154.9415316192.

The spelling of 1540564892 in words is "one billion, five hundred forty million, five hundred sixty-four thousand, eight hundred ninety-two".