1540445232 has 40 divisors (see below), whose sum is σ = 3995369280. Its totient is φ = 511432000.

The previous prime is 1540445213. The next prime is 1540445251. The reversal of 1540445232 is 2325440451.

It is an interprime number because it is at equal distance from previous prime (1540445213) and next prime (1540445251).

It is a self number, because there is not a number n which added to its sum of digits gives 1540445232.

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, 51882 + ... + 75977.

It is an arithmetic number, because the mean of its divisors is an integer number (99884232).

Almost surely, 2^1540445232 is an apocalyptic number.

1540445232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1540445232 is an abundant number, since it is smaller than the sum of its proper divisors (2454924048).

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

1540445232 is a wasteful number, since it uses less digits than its factorization.

1540445232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128121 (or 128115 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 1540445232 is about 39248.5061116981. The cubic root of 1540445232 is about 1154.9116283280.

Adding to 1540445232 its reverse (2325440451), we get a palindrome (3865885683).

The spelling of 1540445232 in words is "one billion, five hundred forty million, four hundred forty-five thousand, two hundred thirty-two".