1540748652 has 24 divisors (see below), whose sum is σ = 3678687936. Its totient is φ = 501638928.

The previous prime is 1540748647. The next prime is 1540748719. The reversal of 1540748652 is 2568470451.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1492458 + ... + 1493489.

It is an arithmetic number, because the mean of its divisors is an integer number (153278664).

Almost surely, 2^1540748652 is an apocalyptic number.

1540748652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1540748652 is an abundant number, since it is smaller than the sum of its proper divisors (2137939284).

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

1540748652 is a wasteful number, since it uses less digits than its factorization.

1540748652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2985997 (or 2985995 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 42.

The square root of 1540748652 is about 39252.3712914265. The cubic root of 1540748652 is about 1154.9874506236.

The spelling of 1540748652 in words is "one billion, five hundred forty million, seven hundred forty-eight thousand, six hundred fifty-two".