237890942172 has 120 divisors (see below), whose sum is σ = 675877540800. Its totient is φ = 72525538944.

The previous prime is 237890942137. The next prime is 237890942203. The reversal of 237890942172 is 271249098732.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 200029 + ... + 718187.

It is an arithmetic number, because the mean of its divisors is an integer number (5632312840).

Almost surely, 2^237890942172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 237890942172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337938770400).

237890942172 is an abundant number, since it is smaller than the sum of its proper divisors (437986598628).

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

237890942172 is a wasteful number, since it uses less digits than its factorization.

237890942172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518297 (or 518286 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 237890942172 in words is "two hundred thirty-seven billion, eight hundred ninety million, nine hundred forty-two thousand, one hundred seventy-two".