145464438 has 48 divisors (see below), whose sum is σ = 342766080. Its totient is φ = 41028624.

The previous prime is 145464419. The next prime is 145464439. The reversal of 145464438 is 834464541.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 145464396 and 145464405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145464439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20095 + ... + 26357.

It is an arithmetic number, because the mean of its divisors is an integer number (7140960).

Almost surely, 2^145464438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145464438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171383040).

145464438 is an abundant number, since it is smaller than the sum of its proper divisors (197301642).

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

145464438 is a wasteful number, since it uses less digits than its factorization.

145464438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6361 (or 6354 counting only the distinct ones).

The product of its digits is 184320, while the sum is 39.

The square root of 145464438 is about 12060.8638994062. The cubic root of 145464438 is about 525.9191011305.

The spelling of 145464438 in words is "one hundred forty-five million, four hundred sixty-four thousand, four hundred thirty-eight".