4041978372 has 36 divisors (see below), whose sum is σ = 10390401840. Its totient is φ = 1324489392.

The previous prime is 4041978341. The next prime is 4041978373. The reversal of 4041978372 is 2738791404.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (4041978373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 949378 + ... + 953625.

Almost surely, 2^4041978372 is an apocalyptic number.

It is an amenable number.

4041978372 is an abundant number, since it is smaller than the sum of its proper divisors (6348423468).

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

4041978372 is a wasteful number, since it uses less digits than its factorization.

4041978372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903072 (or 1903067 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 4041978372 is about 63576.5552070887. Note that the first 3 decimals coincide. The cubic root of 4041978372 is about 1592.9347814549.

The spelling of 4041978372 in words is "four billion, forty-one million, nine hundred seventy-eight thousand, three hundred seventy-two".