40266028 has 24 divisors (see below), whose sum is σ = 78511104. Its totient is φ = 17912400.

The previous prime is 40266019. The next prime is 40266029. The reversal of 40266028 is 82066204.

It is a junction number, because it is equal to n+sod(n) for n = 40265987 and 40266005.

It is not an unprimeable number, because it can be changed into a prime (40266029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7668 + ... + 11803.

It is an arithmetic number, because the mean of its divisors is an integer number (3271296).

Almost surely, 2^40266028 is an apocalyptic number.

It is an amenable number.

40266028 is a deficient number, since it is larger than the sum of its proper divisors (38245076).

40266028 is a wasteful number, since it uses less digits than its factorization.

40266028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19533 (or 19531 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 40266028 is about 6345.5518278555. The cubic root of 40266028 is about 342.7516838682.

It can be divided in two parts, 402 and 66028, that added together give a triangular number (66430 = T₃₆₄).

The spelling of 40266028 in words is "forty million, two hundred sixty-six thousand, twenty-eight".