143226240 has 64 divisors (see below), whose sum is σ = 456539760. Its totient is φ = 38193152.

The previous prime is 143226229. The next prime is 143226277. The reversal of 143226240 is 42622341.

143226240 = T₃₂₃ + T₃₂₄ + ... + T₉₆₂.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 143226240.

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, 35379 + ... + 39218.

Almost surely, 2^143226240 is an apocalyptic number.

143226240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143226240 is an abundant number, since it is smaller than the sum of its proper divisors (313313520).

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

143226240 is an equidigital number, since it uses as much as digits as its factorization.

143226240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74619 (or 74607 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 143226240 is about 11967.7165741841. The cubic root of 143226240 is about 523.2077844889.

Adding to 143226240 its reverse (42622341), we get a palindrome (185848581).

It can be divided in two parts, 1432 and 26240, that added together give a palindrome (27672).

The spelling of 143226240 in words is "one hundred forty-three million, two hundred twenty-six thousand, two hundred forty".