35143220 has 48 divisors (see below), whose sum is σ = 84889728. Its totient is φ = 11971200.

The previous prime is 35143219. The next prime is 35143261. The reversal of 35143220 is 2234153.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 35143192 and 35143201.

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 15 ways as a sum of consecutive naturals, for example, 23495 + ... + 24945.

It is an arithmetic number, because the mean of its divisors is an integer number (1768536).

Almost surely, 2^35143220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 35143220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42444864).

35143220 is an abundant number, since it is smaller than the sum of its proper divisors (49746508).

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

35143220 is a wasteful number, since it uses less digits than its factorization.

35143220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640 (or 1638 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 35143220 is about 5928.1717249081. The cubic root of 35143220 is about 327.5521972627.

Adding to 35143220 its reverse (2234153), we get a palindrome (37377373).

The spelling of 35143220 in words is "thirty-five million, one hundred forty-three thousand, two hundred twenty".