144764460 has 72 divisors (see below), whose sum is σ = 441670320. Its totient is φ = 38379648.

The previous prime is 144764453. The next prime is 144764471. The reversal of 144764460 is 64467441.

144764460 is a `hidden beast` number, since 1 + 4 + 4 + 7 + 644 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29974 + ... + 34466.

It is an arithmetic number, because the mean of its divisors is an integer number (6134310).

Almost surely, 2^144764460 is an apocalyptic number.

144764460 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 144764460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220835160).

144764460 is an abundant number, since it is smaller than the sum of its proper divisors (296905860).

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

144764460 is a wasteful number, since it uses less digits than its factorization.

144764460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4687 (or 4682 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 144764460 is about 12031.8103376009. The cubic root of 144764460 is about 525.0741663928.

The spelling of 144764460 in words is "one hundred forty-four million, seven hundred sixty-four thousand, four hundred sixty".