32390145 has 32 divisors (see below), whose sum is σ = 58458240. Its totient is φ = 17012160.

The previous prime is 32390119. The next prime is 32390147. The reversal of 32390145 is 54109323.

It is not a de Polignac number, because 32390145 - 2¹² = 32386049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (32390147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7255 + ... + 10835.

It is an arithmetic number, because the mean of its divisors is an integer number (1826820).

Almost surely, 2^32390145 is an apocalyptic number.

It is an amenable number.

32390145 is a deficient number, since it is larger than the sum of its proper divisors (26068095).

32390145 is a wasteful number, since it uses less digits than its factorization.

32390145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3662 (or 3656 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 32390145 is about 5691.2340489563. The cubic root of 32390145 is about 318.7652449456.

Adding to 32390145 its reverse (54109323), we get a palindrome (86499468).

The spelling of 32390145 in words is "thirty-two million, three hundred ninety thousand, one hundred forty-five".