40425000 has 288 divisors, whose sum is σ = 160302240. Its totient is φ = 8400000.

The previous prime is 40424999. The next prime is 40425013. The reversal of 40425000 is 52404.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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 71 ways as a sum of consecutive naturals, for example, 3674995 + ... + 3675005.

It is an arithmetic number, because the mean of its divisors is an integer number (556605).

Almost surely, 2^40425000 is an apocalyptic number.

40425000 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 40425000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80151120).

40425000 is an abundant number, since it is smaller than the sum of its proper divisors (119877240).

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

40425000 is a wasteful number, since it uses less digits than its factorization.

40425000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59 (or 28 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 40425000 is about 6358.0657436047. The cubic root of 40425000 is about 343.2021576578.

Adding to 40425000 its reverse (52404), we get a palindrome (40477404).

The spelling of 40425000 in words is "forty million, four hundred twenty-five thousand".