132638020 has 12 divisors (see below), whose sum is σ = 278539884. Its totient is φ = 53055200.

The previous prime is 132638017. The next prime is 132638021. The reversal of 132638020 is 20836231.

It can be written as a sum of positive squares in 2 ways, for example, as 71673156 + 60964864 = 8466^2 + 7808^2 .

It is not an unprimeable number, because it can be changed into a prime (132638021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3315931 + ... + 3315970.

It is an arithmetic number, because the mean of its divisors is an integer number (23211657).

Almost surely, 2^132638020 is an apocalyptic number.

132638020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132638020 is an abundant number, since it is smaller than the sum of its proper divisors (145901864).

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

132638020 is a wasteful number, since it uses less digits than its factorization.

132638020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6631910 (or 6631908 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 132638020 is about 11516.8580784865. The cubic root of 132638020 is about 509.9833648297.

The spelling of 132638020 in words is "one hundred thirty-two million, six hundred thirty-eight thousand, twenty".