144934740 has 72 divisors (see below), whose sum is σ = 441074088. Its totient is φ = 38522880.

The previous prime is 144934709. The next prime is 144934759. The reversal of 144934740 is 47439441.

It can be written as a sum of positive squares in 4 ways, for example, as 14837904 + 130096836 = 3852^2 + 11406^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 144934695 and 144934704.

It is a congruent number.

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, 62400 + ... + 64680.

It is an arithmetic number, because the mean of its divisors is an integer number (6126029).

Almost surely, 2^144934740 is an apocalyptic number.

144934740 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 144934740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220537044).

144934740 is an abundant number, since it is smaller than the sum of its proper divisors (296139348).

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

144934740 is a wasteful number, since it uses less digits than its factorization.

144934740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2649 (or 2644 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 144934740 is about 12038.8844998197. The cubic root of 144934740 is about 525.2799595268.

The spelling of 144934740 in words is "one hundred forty-four million, nine hundred thirty-four thousand, seven hundred forty".