144399370 has 16 divisors (see below), whose sum is σ = 261818568. Its totient is φ = 57337600.

The previous prime is 144399349. The next prime is 144399371. The reversal of 144399370 is 73993441.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 71757841 + 72641529 = 8471^2 + 8523^2 .

It is not an unprimeable number, because it can be changed into a prime (144399371) 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, 51331 + ... + 54070.

Almost surely, 2^144399370 is an apocalyptic number.

144399370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144399370 is a deficient number, since it is larger than the sum of its proper divisors (117419198).

144399370 is a wasteful number, since it uses less digits than its factorization.

144399370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105545.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 144399370 is about 12016.6288949938. The cubic root of 144399370 is about 524.6323896700.

The spelling of 144399370 in words is "one hundred forty-four million, three hundred ninety-nine thousand, three hundred seventy".