143897040 has 320 divisors, whose sum is σ = 586629120. Its totient is φ = 31726080.

The previous prime is 143897011. The next prime is 143897041. The reversal of 143897040 is 40798341.

It is a happy number.

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 = 143896986 and 143897004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143897041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 468567 + ... + 468873.

It is an arithmetic number, because the mean of its divisors is an integer number (1833216).

Almost surely, 2^143897040 is an apocalyptic number.

143897040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143897040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293314560).

143897040 is an abundant number, since it is smaller than the sum of its proper divisors (442732080).

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

143897040 is a wasteful number, since it uses less digits than its factorization.

143897040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 143897040 is about 11995.7092328882. The cubic root of 143897040 is about 524.0233270504.

The spelling of 143897040 in words is "one hundred forty-three million, eight hundred ninety-seven thousand, forty".