145232340 has 96 divisors (see below), whose sum is σ = 446269824. Its totient is φ = 34997760.

The previous prime is 145232317. The next prime is 145232357. The reversal of 145232340 is 43232541.

It is a self number, because there is not a number n which added to its sum of digits gives 145232340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129462 + ... + 130578.

It is an arithmetic number, because the mean of its divisors is an integer number (4648644).

Almost surely, 2^145232340 is an apocalyptic number.

145232340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145232340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223134912).

145232340 is an abundant number, since it is smaller than the sum of its proper divisors (301037484).

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

145232340 is a wasteful number, since it uses less digits than its factorization.

145232340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337 (or 1335 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 145232340 is about 12051.2381106673. The cubic root of 145232340 is about 525.6392394873.

Adding to 145232340 its reverse (43232541), we get a palindrome (188464881).

The spelling of 145232340 in words is "one hundred forty-five million, two hundred thirty-two thousand, three hundred forty".