144021374 has 16 divisors (see below), whose sum is σ = 247308768. Its totient is φ = 61619712.

The previous prime is 144021347. The next prime is 144021379. The reversal of 144021374 is 473120441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144021379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302 + ... + 16974.

It is an arithmetic number, because the mean of its divisors is an integer number (15456798).

Almost surely, 2^144021374 is an apocalyptic number.

144021374 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

144021374 is a deficient number, since it is larger than the sum of its proper divisors (103287394).

144021374 is a wasteful number, since it uses less digits than its factorization.

144021374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17299.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 144021374 is about 12000.8905502883. The cubic root of 144021374 is about 524.1742107655.

The spelling of 144021374 in words is "one hundred forty-four million, twenty-one thousand, three hundred seventy-four".