144777942 has 56 divisors (see below), whose sum is σ = 328949280. Its totient is φ = 47764080.

The previous prime is 144777937. The next prime is 144777943. The reversal of 144777942 is 249777441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144777943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 158467 + ... + 159377.

Almost surely, 2^144777942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144777942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164474640).

144777942 is an abundant number, since it is smaller than the sum of its proper divisors (184171338).

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

144777942 is an equidigital number, since it uses as much as digits as its factorization.

144777942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040 (or 1025 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 144777942 is about 12032.3705893727. The cubic root of 144777942 is about 525.0904660430.

The spelling of 144777942 in words is "one hundred forty-four million, seven hundred seventy-seven thousand, nine hundred forty-two".