1540537836 has 48 divisors (see below), whose sum is σ = 3655507968. Its totient is φ = 504851200.

The previous prime is 1540537829. The next prime is 1540537853. The reversal of 1540537836 is 6387350451.

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, 323956 + ... + 328676.

It is an arithmetic number, because the mean of its divisors is an integer number (76156416).

Almost surely, 2^1540537836 is an apocalyptic number.

It is an amenable number.

1540537836 is an abundant number, since it is smaller than the sum of its proper divisors (2114970132).

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

1540537836 is a wasteful number, since it uses less digits than its factorization.

1540537836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5182 (or 5180 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The square root of 1540537836 is about 39249.6858076597. The cubic root of 1540537836 is about 1154.9347704021.

The spelling of 1540537836 in words is "one billion, five hundred forty million, five hundred thirty-seven thousand, eight hundred thirty-six".