40472000 has 56 divisors (see below), whose sum is σ = 100248720. Its totient is φ = 16185600.

The previous prime is 40471997. The next prime is 40472009. The reversal of 40472000 is 27404.

It is a self number, because there is not a number n which added to its sum of digits gives 40472000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40472009) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5471 + ... + 10529.

Almost surely, 2^40472000 is an apocalyptic number.

40472000 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 40472000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50124360).

40472000 is an abundant number, since it is smaller than the sum of its proper divisors (59776720).

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

40472000 is an equidigital number, since it uses as much as digits as its factorization.

40472000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5086 (or 5066 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 40472000 is about 6361.7607625562. The cubic root of 40472000 is about 343.3351137830.

Adding to 40472000 its reverse (27404), we get a palindrome (40499404).

The spelling of 40472000 in words is "forty million, four hundred seventy-two thousand".