536121640 has 16 divisors (see below), whose sum is σ = 1206273780. Its totient is φ = 214448640.

The previous prime is 536121629. The next prime is 536121643. The reversal of 536121640 is 46121635.

It can be written as a sum of positive squares in 2 ways, for example, as 536107716 + 13924 = 23154^2 + 118^2 .

It is a junction number, because it is equal to n+sod(n) for n = 536121599 and 536121608.

It is not an unprimeable number, because it can be changed into a prime (536121643) 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, 6701481 + ... + 6701560.

Almost surely, 2^536121640 is an apocalyptic number.

It is an amenable number.

536121640 is an abundant number, since it is smaller than the sum of its proper divisors (670152140).

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

536121640 is a wasteful number, since it uses less digits than its factorization.

536121640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13403052 (or 13403048 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 536121640 is about 23154.3006804352. The cubic root of 536121640 is about 812.3710640372.

The spelling of 536121640 in words is "five hundred thirty-six million, one hundred twenty-one thousand, six hundred forty".