4078219725 has 72 divisors (see below), whose sum is σ = 7742540160. Its totient is φ = 2104552800.

The previous prime is 4078219711. The next prime is 4078219727. The reversal of 4078219725 is 5279128704.

It is a happy number.

4078219725 is a `hidden beast` number, since 407 + 8 + 219 + 7 + 25 = 666.

It is not a de Polignac number, because 4078219725 - 2⁹ = 4078219213 is a prime.

It is a super-2 number, since 2×4078219725² = 33263752250758151250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4078219727) 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 71 ways as a sum of consecutive naturals, for example, 645532 + ... + 651818.

It is an arithmetic number, because the mean of its divisors is an integer number (107535280).

Almost surely, 2^4078219725 is an apocalyptic number.

4078219725 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4078219725 is a deficient number, since it is larger than the sum of its proper divisors (3664320435).

4078219725 is a wasteful number, since it uses less digits than its factorization.

4078219725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6368 (or 6326 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 4078219725 is about 63860.9405270546. The cubic root of 4078219725 is about 1597.6815020032.

The spelling of 4078219725 in words is "four billion, seventy-eight million, two hundred nineteen thousand, seven hundred twenty-five".