144074742 has 16 divisors (see below), whose sum is σ = 329313792. Its totient is φ = 41164200.

The previous prime is 144074719. The next prime is 144074743. The reversal of 144074742 is 247470441.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144074743) 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, 1715134 + ... + 1715217.

It is an arithmetic number, because the mean of its divisors is an integer number (20582112).

Almost surely, 2^144074742 is an apocalyptic number.

144074742 is an abundant number, since it is smaller than the sum of its proper divisors (185239050).

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

144074742 is a wasteful number, since it uses less digits than its factorization.

144074742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3430363.

The product of its (nonzero) digits is 25088, while the sum is 33.

The square root of 144074742 is about 12003.1138459985. The cubic root of 144074742 is about 524.2389480886.

The spelling of 144074742 in words is "one hundred forty-four million, seventy-four thousand, seven hundred forty-two".