32428790 has 32 divisors (see below), whose sum is σ = 61122816. Its totient is φ = 12372480.

The previous prime is 32428787. The next prime is 32428793. The reversal of 32428790 is 9782423.

It is an interprime number because it is at equal distance from previous prime (32428787) and next prime (32428793).

It is a self number, because there is not a number n which added to its sum of digits gives 32428790.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32428793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21914 + ... + 23346.

It is an arithmetic number, because the mean of its divisors is an integer number (1910088).

Almost surely, 2^32428790 is an apocalyptic number.

32428790 is a deficient number, since it is larger than the sum of its proper divisors (28694026).

32428790 is a wasteful number, since it uses less digits than its factorization.

32428790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 32428790 is about 5694.6281704779. The cubic root of 32428790 is about 318.8919685417.

The spelling of 32428790 in words is "thirty-two million, four hundred twenty-eight thousand, seven hundred ninety".