32628378 has 16 divisors (see below), whose sum is σ = 65544480. Its totient is φ = 10828176.

The previous prime is 32628373. The next prime is 32628391. The reversal of 32628378 is 87382623.

It is a happy number.

It is a super-2 number, since 2×32628378² = 2129222101821768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (32628371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10500 + ... + 13247.

It is an arithmetic number, because the mean of its divisors is an integer number (4096530).

Almost surely, 2^32628378 is an apocalyptic number.

32628378 is an abundant number, since it is smaller than the sum of its proper divisors (32916102).

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

32628378 is a wasteful number, since it uses less digits than its factorization.

32628378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23981.

The product of its digits is 96768, while the sum is 39.

The square root of 32628378 is about 5712.1255238309. The cubic root of 32628378 is about 319.5448542413.

The spelling of 32628378 in words is "thirty-two million, six hundred twenty-eight thousand, three hundred seventy-eight".