233661642 has 16 divisors (see below), whose sum is σ = 483438240. Its totient is φ = 75201392.

The previous prime is 233661607. The next prime is 233661647. The reversal of 233661642 is 246166332.

233661642 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (233661647) 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, 671268 + ... + 671615.

It is an arithmetic number, because the mean of its divisors is an integer number (30214890).

Almost surely, 2^233661642 is an apocalyptic number.

233661642 is an abundant number, since it is smaller than the sum of its proper divisors (249776598).

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

233661642 is a wasteful number, since it uses less digits than its factorization.

233661642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342917.

The product of its digits is 31104, while the sum is 33.

The square root of 233661642 is about 15285.9949627101. The cubic root of 233661642 is about 615.9268567930.

The spelling of 233661642 in words is "two hundred thirty-three million, six hundred sixty-one thousand, six hundred forty-two".