1540553682 has 32 divisors (see below), whose sum is σ = 3169524672. Its totient is φ = 498826944.

The previous prime is 1540553681. The next prime is 1540553737. The reversal of 1540553682 is 2863550451.

It is a self number, because there is not a number n which added to its sum of digits gives 1540553682.

It is not an unprimeable number, because it can be changed into a prime (1540553681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139653 + ... + 150279.

It is an arithmetic number, because the mean of its divisors is an integer number (99047646).

Almost surely, 2^1540553682 is an apocalyptic number.

1540553682 is an abundant number, since it is smaller than the sum of its proper divisors (1628970990).

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

1540553682 is a wasteful number, since it uses less digits than its factorization.

1540553682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11322.

The product of its (nonzero) digits is 144000, while the sum is 39.

The square root of 1540553682 is about 39249.8876686291. The cubic root of 1540553682 is about 1154.9387302818.

The spelling of 1540553682 in words is "one billion, five hundred forty million, five hundred fifty-three thousand, six hundred eighty-two".