144632464 has 80 divisors (see below), whose sum is σ = 315515520. Its totient is φ = 63866880.

The previous prime is 144632459. The next prime is 144632471. The reversal of 144632464 is 464236441.

It is a super-2 number, since 2×144632464² = 41837099285422592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

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 15 ways as a sum of consecutive naturals, for example, 381427 + ... + 381805.

It is an arithmetic number, because the mean of its divisors is an integer number (3943944).

Almost surely, 2^144632464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144632464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157757760).

144632464 is an abundant number, since it is smaller than the sum of its proper divisors (170883056).

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

144632464 is a wasteful number, since it uses less digits than its factorization.

144632464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488 (or 482 counting only the distinct ones).

The product of its digits is 55296, while the sum is 34.

The square root of 144632464 is about 12026.3237940777. The cubic root of 144632464 is about 524.9145306065.

The spelling of 144632464 in words is "one hundred forty-four million, six hundred thirty-two thousand, four hundred sixty-four".