143420404 has 24 divisors (see below), whose sum is σ = 255257856. Its totient is φ = 70500000.

The previous prime is 143420383. The next prime is 143420429. The reversal of 143420404 is 404024341.

143420404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59829 + ... + 62179.

It is an arithmetic number, because the mean of its divisors is an integer number (10635744).

Almost surely, 2^143420404 is an apocalyptic number.

It is an amenable number.

143420404 is a deficient number, since it is larger than the sum of its proper divisors (111837452).

143420404 is a wasteful number, since it uses less digits than its factorization.

143420404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2607 (or 2605 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 143420404 is about 11975.8258170366. The cubic root of 143420404 is about 523.4441058152. Note that the first 3 decimals are identical.

Adding to 143420404 its reverse (404024341), we get a palindrome (547444745).

The spelling of 143420404 in words is "one hundred forty-three million, four hundred twenty thousand, four hundred four".