144417428 has 12 divisors (see below), whose sum is σ = 256503072. Its totient is φ = 71130840.

The previous prime is 144417409. The next prime is 144417463. The reversal of 144417428 is 824714441.

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, 269168 + ... + 269703.

It is an arithmetic number, because the mean of its divisors is an integer number (21375256).

Almost surely, 2^144417428 is an apocalyptic number.

It is an amenable number.

144417428 is a deficient number, since it is larger than the sum of its proper divisors (112085644).

144417428 is a wasteful number, since it uses less digits than its factorization.

144417428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538942 (or 538940 counting only the distinct ones).

The product of its digits is 28672, while the sum is 35.

The square root of 144417428 is about 12017.3802469590. The cubic root of 144417428 is about 524.6542582252.

The spelling of 144417428 in words is "one hundred forty-four million, four hundred seventeen thousand, four hundred twenty-eight".