144392764 has 12 divisors (see below), whose sum is σ = 267551424. Its totient is φ = 67949504.

The previous prime is 144392741. The next prime is 144392791. The reversal of 144392764 is 467293441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1061644 + ... + 1061779.

It is an arithmetic number, because the mean of its divisors is an integer number (22295952).

Almost surely, 2^144392764 is an apocalyptic number.

It is an amenable number.

144392764 is a deficient number, since it is larger than the sum of its proper divisors (123158660).

144392764 is a wasteful number, since it uses less digits than its factorization.

144392764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123444 (or 2123442 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 144392764 is about 12016.3540227475. The cubic root of 144392764 is about 524.6243892324.

The spelling of 144392764 in words is "one hundred forty-four million, three hundred ninety-two thousand, seven hundred sixty-four".