143690940 has 72 divisors (see below), whose sum is σ = 450908640. Its totient is φ = 36994944.

The previous prime is 143690917. The next prime is 143690957. The reversal of 143690940 is 49096341.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 143690895 and 143690904.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8544 + ... + 18983.

It is an arithmetic number, because the mean of its divisors is an integer number (6262620).

Almost surely, 2^143690940 is an apocalyptic number.

143690940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143690940 is an abundant number, since it is smaller than the sum of its proper divisors (307217700).

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

143690940 is a wasteful number, since it uses less digits than its factorization.

143690940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27571 (or 27566 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 143690940 is about 11987.1155829916. The cubic root of 143690940 is about 523.7730258369.

The spelling of 143690940 in words is "one hundred forty-three million, six hundred ninety thousand, nine hundred forty".