143402040 has 48 divisors (see below), whose sum is σ = 466057800. Its totient is φ = 38240448.

The previous prime is 143402027. The next prime is 143402057. The reversal of 143402040 is 40204341.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198810 + ... + 199529.

Almost surely, 2^143402040 is an apocalyptic number.

143402040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143402040 is an abundant number, since it is smaller than the sum of its proper divisors (322655760).

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

143402040 is a wasteful number, since it uses less digits than its factorization.

143402040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398356 (or 398349 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 143402040 is about 11975.0590812739. The cubic root of 143402040 is about 523.4217637179.

Adding to 143402040 its reverse (40204341), we get a palindrome (183606381).

The spelling of 143402040 in words is "one hundred forty-three million, four hundred two thousand, forty".