40497672 has 32 divisors (see below), whose sum is σ = 107200800. Its totient is φ = 12705024.

The previous prime is 40497649. The next prime is 40497673. The reversal of 40497672 is 27679404.

It is a super-2 number, since 2×40497672² = 3280122874839168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40497672.

It is not an unprimeable number, because it can be changed into a prime (40497673) 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, 49222 + ... + 50037.

It is an arithmetic number, because the mean of its divisors is an integer number (3350025).

Almost surely, 2^40497672 is an apocalyptic number.

It is an amenable number.

40497672 is an abundant number, since it is smaller than the sum of its proper divisors (66703128).

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

40497672 is a wasteful number, since it uses less digits than its factorization.

40497672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99285 (or 99281 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 40497672 is about 6363.7781230964. The cubic root of 40497672 is about 343.4076926529.

The spelling of 40497672 in words is "forty million, four hundred ninety-seven thousand, six hundred seventy-two".