1533408140 has 24 divisors (see below), whose sum is σ = 3512899152. Its totient is φ = 557602880.

The previous prime is 1533408139. The next prime is 1533408169. The reversal of 1533408140 is 418043351.

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, 3484799 + ... + 3485238.

It is an arithmetic number, because the mean of its divisors is an integer number (146370798).

Almost surely, 2^1533408140 is an apocalyptic number.

1533408140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1533408140 is an abundant number, since it is smaller than the sum of its proper divisors (1979491012).

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

1533408140 is a wasteful number, since it uses less digits than its factorization.

1533408140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6970057 (or 6970055 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1533408140 is about 39158.7555982056. The cubic root of 1533408140 is about 1153.1503136214.

The spelling of 1533408140 in words is "one billion, five hundred thirty-three million, four hundred eight thousand, one hundred forty".