357639140 has 12 divisors (see below), whose sum is σ = 751042236. Its totient is φ = 143055648.

The previous prime is 357639133. The next prime is 357639143. The reversal of 357639140 is 41936753.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 159617956 + 198021184 = 12634^2 + 14072^2 .

It is a junction number, because it is equal to n+sod(n) for n = 357639094 and 357639103.

It is not an unprimeable number, because it can be changed into a prime (357639143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8940959 + ... + 8940998.

It is an arithmetic number, because the mean of its divisors is an integer number (62586853).

Almost surely, 2^357639140 is an apocalyptic number.

It is an amenable number.

357639140 is an abundant number, since it is smaller than the sum of its proper divisors (393403096).

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

357639140 is a wasteful number, since it uses less digits than its factorization.

357639140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17881966 (or 17881964 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 357639140 is about 18911.3495023491. The cubic root of 357639140 is about 709.8201885461.

The spelling of 357639140 in words is "three hundred fifty-seven million, six hundred thirty-nine thousand, one hundred forty".