235661442 has 32 divisors (see below), whose sum is σ = 487956480. Its totient is φ = 75796560.

The previous prime is 235661441. The next prime is 235661443. The reversal of 235661442 is 244166532.

It is an interprime number because it is at equal distance from previous prime (235661441) and next prime (235661443).

It is not an unprimeable number, because it can be changed into a prime (235661441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68823 + ... + 72165.

It is an arithmetic number, because the mean of its divisors is an integer number (15248640).

Almost surely, 2^235661442 is an apocalyptic number.

235661442 is an abundant number, since it is smaller than the sum of its proper divisors (252295038).

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

235661442 is a wasteful number, since it uses less digits than its factorization.

235661442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3758.

The product of its digits is 34560, while the sum is 33.

The square root of 235661442 is about 15351.2684166488. The cubic root of 235661442 is about 617.6790103156.

The spelling of 235661442 in words is "two hundred thirty-five million, six hundred sixty-one thousand, four hundred forty-two".