144403074 has 20 divisors (see below), whose sum is σ = 323570214. Its totient is φ = 48134304.

The previous prime is 144403057. The next prime is 144403087. The reversal of 144403074 is 470304441.

It can be written as a sum of positive squares in only one way, i.e., 144360225 + 42849 = 12015^2 + 207^2 .

It is a super-3 number, since 3×144403074³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 445527 + ... + 445850.

Almost surely, 2^144403074 is an apocalyptic number.

144403074 is an abundant number, since it is smaller than the sum of its proper divisors (179167140).

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

144403074 is an equidigital number, since it uses as much as digits as its factorization.

144403074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891391 (or 891382 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 144403074 is about 12016.7830137687. The cubic root of 144403074 is about 524.6368754277.

The spelling of 144403074 in words is "one hundred forty-four million, four hundred three thousand, seventy-four".