145344432 has 40 divisors (see below), whose sum is σ = 375970480. Its totient is φ = 48384000.

The previous prime is 145344403. The next prime is 145344457. The reversal of 145344432 is 234443541.

It is a super-2 number, since 2×145344432² = 42250007826805248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145344432.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46932 + ... + 49932.

It is an arithmetic number, because the mean of its divisors is an integer number (9399262).

Almost surely, 2^145344432 is an apocalyptic number.

145344432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145344432 is an abundant number, since it is smaller than the sum of its proper divisors (230626048).

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

145344432 is a wasteful number, since it uses less digits than its factorization.

145344432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4021 (or 4015 counting only the distinct ones).

The product of its digits is 23040, while the sum is 30.

The square root of 145344432 is about 12055.8878561473. The cubic root of 145344432 is about 525.7744361930.

Adding to 145344432 its reverse (234443541), we get a palindrome (379787973).

The spelling of 145344432 in words is "one hundred forty-five million, three hundred forty-four thousand, four hundred thirty-two".