32775420 has 48 divisors (see below), whose sum is σ = 92348928. Its totient is φ = 8685120.

The previous prime is 32775383. The next prime is 32775433. The reversal of 32775420 is 2457723.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 8385 + ... + 11655.

It is an arithmetic number, because the mean of its divisors is an integer number (1923936).

Almost surely, 2^32775420 is an apocalyptic number.

32775420 is a gapful number since it is divisible by the number (30) 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 32775420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46174464).

32775420 is an abundant number, since it is smaller than the sum of its proper divisors (59573508).

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

32775420 is a wasteful number, since it uses less digits than its factorization.

32775420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3450 (or 3448 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 32775420 is about 5724.9820960419. The cubic root of 32775420 is about 320.0241518229.

The spelling of 32775420 in words is "thirty-two million, seven hundred seventy-five thousand, four hundred twenty".