144620642 has 32 divisors (see below), whose sum is σ = 240067584. Its totient is φ = 65102400.

The previous prime is 144620633. The next prime is 144620659. The reversal of 144620642 is 246026441.

It is a happy number.

144620642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51392 + ... + 54132.

It is an arithmetic number, because the mean of its divisors is an integer number (7502112).

Almost surely, 2^144620642 is an apocalyptic number.

144620642 is a deficient number, since it is larger than the sum of its proper divisors (95446942).

144620642 is a wasteful number, since it uses less digits than its factorization.

144620642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 144620642 is about 12025.8322788903. The cubic root of 144620642 is about 524.9002283572.

The spelling of 144620642 in words is "one hundred forty-four million, six hundred twenty thousand, six hundred forty-two".