143949378 has 16 divisors (see below), whose sum is σ = 293331456. Its totient is φ = 47077680.

The previous prime is 143949371. The next prime is 143949389. The reversal of 143949378 is 873949341.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (143949371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226018 + ... + 226653.

It is an arithmetic number, because the mean of its divisors is an integer number (18333216).

Almost surely, 2^143949378 is an apocalyptic number.

143949378 is an abundant number, since it is smaller than the sum of its proper divisors (149382078).

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

143949378 is a wasteful number, since it uses less digits than its factorization.

143949378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452729.

The product of its digits is 653184, while the sum is 48.

The square root of 143949378 is about 11997.8905645951. The cubic root of 143949378 is about 524.0868516566.

The spelling of 143949378 in words is "one hundred forty-three million, nine hundred forty-nine thousand, three hundred seventy-eight".