144433854 has 44 divisors (see below), whose sum is σ = 325240056. Its totient is φ = 48105252.

The previous prime is 144433823. The next prime is 144433889. The reversal of 144433854 is 458334441.

144433854 is a `hidden beast` number, since 144 + 433 + 85 + 4 = 666.

It is a super-2 number, since 2×144433854² = 41722276362586632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 21 ways as a sum of consecutive naturals, for example, 117487 + ... + 118709.

Almost surely, 2^144433854 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144433854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162620028).

144433854 is an abundant number, since it is smaller than the sum of its proper divisors (180806202).

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

144433854 is an frugal number, since it uses more digits than its factorization.

144433854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255 (or 1228 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 144433854 is about 12018.0636543496. The cubic root of 144433854 is about 524.6741488165.

The spelling of 144433854 in words is "one hundred forty-four million, four hundred thirty-three thousand, eight hundred fifty-four".