236828640 has 48 divisors (see below), whose sum is σ = 746011728. Its totient is φ = 63154176.

The previous prime is 236828639. The next prime is 236828651. The reversal of 236828640 is 46828632.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246217 + ... + 247176.

It is an arithmetic number, because the mean of its divisors is an integer number (15541911).

Almost surely, 2^236828640 is an apocalyptic number.

236828640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

236828640 is an abundant number, since it is smaller than the sum of its proper divisors (509183088).

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

236828640 is a wasteful number, since it uses less digits than its factorization.

236828640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493411 (or 493403 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 236828640 is about 15389.2377978898. The cubic root of 236828640 is about 618.6970904661.

The spelling of 236828640 in words is "two hundred thirty-six million, eight hundred twenty-eight thousand, six hundred forty".