144893970 has 96 divisors (see below), whose sum is σ = 412776000. Its totient is φ = 35044992.

The previous prime is 144893963. The next prime is 144893993. The reversal of 144893970 is 79398441.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67981 + ... + 70079.

It is an arithmetic number, because the mean of its divisors is an integer number (4299750).

Almost surely, 2^144893970 is an apocalyptic number.

144893970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 144893970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206388000).

144893970 is an abundant number, since it is smaller than the sum of its proper divisors (267882030).

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

144893970 is a wasteful number, since it uses less digits than its factorization.

144893970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2184 (or 2181 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 144893970 is about 12037.1911175324. The cubic root of 144893970 is about 525.2307013289.

It can be divided in two parts, 14 and 4893970, that added together give a palindrome (4893984).

The spelling of 144893970 in words is "one hundred forty-four million, eight hundred ninety-three thousand, nine hundred seventy".