838652740 has 24 divisors (see below), whose sum is σ = 1821902040. Its totient is φ = 323893248.

The previous prime is 838652713. The next prime is 838652741. The reversal of 838652740 is 47256838.

It can be written as a sum of positive squares in 4 ways, for example, as 24920064 + 813732676 = 4992^2 + 28526^2 .

It is not an unprimeable number, because it can be changed into a prime (838652741) 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, 722397 + ... + 723556.

It is an arithmetic number, because the mean of its divisors is an integer number (75912585).

Almost surely, 2^838652740 is an apocalyptic number.

It is an amenable number.

838652740 is an abundant number, since it is smaller than the sum of its proper divisors (983249300).

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

838652740 is a wasteful number, since it uses less digits than its factorization.

838652740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445991 (or 1445989 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 838652740 is about 28959.5017222327. The cubic root of 838652740 is about 943.0340848339.

The spelling of 838652740 in words is "eight hundred thirty-eight million, six hundred fifty-two thousand, seven hundred forty".