4235978940 has 96 divisors (see below), whose sum is σ = 12509656320. Its totient is φ = 1068028416.

The previous prime is 4235978863. The next prime is 4235978983. The reversal of 4235978940 is 498795324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 620184 + ... + 626976.

It is an arithmetic number, because the mean of its divisors is an integer number (130308920).

Almost surely, 2^4235978940 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 4235978940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6254828160).

4235978940 is an abundant number, since it is smaller than the sum of its proper divisors (8273677380).

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

4235978940 is a wasteful number, since it uses less digits than its factorization.

4235978940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7371 (or 7369 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The square root of 4235978940 is about 65084.3985913675. The cubic root of 4235978940 is about 1618.0226522376.

The spelling of 4235978940 in words is "four billion, two hundred thirty-five million, nine hundred seventy-eight thousand, nine hundred forty".