4181403978 has 32 divisors (see below), whose sum is σ = 9294192000. Its totient is φ = 1393473888.

The previous prime is 4181403973. The next prime is 4181404001. The reversal of 4181403978 is 8793041814.

It is a happy number.

4181403978 is a `hidden beast` number, since 418 + 140 + 3 + 97 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (4181403971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361123 + ... + 372521.

It is an arithmetic number, because the mean of its divisors is an integer number (290443500).

Almost surely, 2^4181403978 is an apocalyptic number.

4181403978 is an abundant number, since it is smaller than the sum of its proper divisors (5112788022).

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

4181403978 is a wasteful number, since it uses less digits than its factorization.

4181403978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18203 (or 18197 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 4181403978 is about 64663.7763976092. The cubic root of 4181403978 is about 1611.0439043550.

The spelling of 4181403978 in words is "four billion, one hundred eighty-one million, four hundred three thousand, nine hundred seventy-eight".