144345742 has 32 divisors (see below), whose sum is σ = 238256640. Its totient is φ = 65312640.

The previous prime is 144345739. The next prime is 144345743. The reversal of 144345742 is 247543441.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 144345698 and 144345707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144345743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93517 + ... + 95047.

It is an arithmetic number, because the mean of its divisors is an integer number (7445520).

Almost surely, 2^144345742 is an apocalyptic number.

144345742 is a deficient number, since it is larger than the sum of its proper divisors (93910898).

144345742 is a wasteful number, since it uses less digits than its factorization.

144345742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656.

The product of its digits is 53760, while the sum is 34.

The square root of 144345742 is about 12014.3972799304. The cubic root of 144345742 is about 524.5674344708.

The spelling of 144345742 in words is "one hundred forty-four million, three hundred forty-five thousand, seven hundred forty-two".