143402340 has 48 divisors (see below), whose sum is σ = 402212160. Its totient is φ = 38175360.

The previous prime is 143402333. The next prime is 143402359. The reversal of 143402340 is 43204341.

143402340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×143402340² = 41128462234951200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40855 + ... + 44225.

It is an arithmetic number, because the mean of its divisors is an integer number (8379420).

Almost surely, 2^143402340 is an apocalyptic number.

143402340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143402340 is an abundant number, since it is smaller than the sum of its proper divisors (258809820).

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

143402340 is a wasteful number, since it uses less digits than its factorization.

143402340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4092 (or 4090 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 143402340 is about 11975.0716073016. The cubic root of 143402340 is about 523.4221287207.

Adding to 143402340 its reverse (43204341), we get a palindrome (186606681).

The spelling of 143402340 in words is "one hundred forty-three million, four hundred two thousand, three hundred forty".