40628787 has 12 divisors (see below), whose sum is σ = 56631624. Its totient is φ = 25907200.

The previous prime is 40628771. The next prime is 40628813. The reversal of 40628787 is 78782604.

It is not a de Polignac number, because 40628787 - 2⁴ = 40628771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40628717) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11214 + ... + 14387.

It is an arithmetic number, because the mean of its divisors is an integer number (4719302).

Almost surely, 2^40628787 is an apocalyptic number.

40628787 is a deficient number, since it is larger than the sum of its proper divisors (16002837).

40628787 is a wasteful number, since it uses less digits than its factorization.

40628787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25650 (or 25627 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 40628787 is about 6374.0714617896. The cubic root of 40628787 is about 343.7778982537. Note that the first 3 decimals are identical.

The spelling of 40628787 in words is "forty million, six hundred twenty-eight thousand, seven hundred eighty-seven".