1545400232 has 32 divisors (see below), whose sum is σ = 3133365120. Its totient is φ = 711770880.

The previous prime is 1545400231. The next prime is 1545400237. The reversal of 1545400232 is 2320045451.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1545400231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114494 + ... + 127277.

It is an arithmetic number, because the mean of its divisors is an integer number (97917660).

Almost surely, 2^1545400232 is an apocalyptic number.

It is an amenable number.

1545400232 is an abundant number, since it is smaller than the sum of its proper divisors (1587964888).

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

1545400232 is a wasteful number, since it uses less digits than its factorization.

1545400232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241841 (or 241837 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1545400232 is about 39311.5788540730. The cubic root of 1545400232 is about 1156.1486002064.

Adding to 1545400232 its reverse (2320045451), we get a palindrome (3865445683).

The spelling of 1545400232 in words is "one billion, five hundred forty-five million, four hundred thousand, two hundred thirty-two".