40425120 has 144 divisors (see below), whose sum is σ = 140343840. Its totient is φ = 10593792.

The previous prime is 40425113. The next prime is 40425163. The reversal of 40425120 is 2152404.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 40425093 and 40425102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96271 + ... + 96689.

It is an arithmetic number, because the mean of its divisors is an integer number (974610).

Almost surely, 2^40425120 is an apocalyptic number.

40425120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40425120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70171920).

40425120 is an abundant number, since it is smaller than the sum of its proper divisors (99918720).

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

40425120 is a wasteful number, since it uses less digits than its factorization.

40425120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 40425120 is about 6358.0751804300. The cubic root of 40425120 is about 343.2024972515.

Adding to 40425120 its reverse (2152404), we get a palindrome (42577524).

The spelling of 40425120 in words is "forty million, four hundred twenty-five thousand, one hundred twenty".