40667025 has 48 divisors (see below), whose sum is σ = 77995008. Its totient is φ = 18312000.

The previous prime is 40667023. The next prime is 40667083. The reversal of 40667025 is 52076604.

It is not a de Polignac number, because 40667025 - 2¹ = 40667023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40666983 and 40667001.

It is not an unprimeable number, because it can be changed into a prime (40667023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36730 + ... + 37820.

It is an arithmetic number, because the mean of its divisors is an integer number (1624896).

Almost surely, 2^40667025 is an apocalyptic number.

It is an amenable number.

40667025 is a deficient number, since it is larger than the sum of its proper divisors (37327983).

40667025 is a wasteful number, since it uses less digits than its factorization.

40667025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182 (or 1177 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 40667025 is about 6377.0702520828. The cubic root of 40667025 is about 343.8857139057.

The spelling of 40667025 in words is "forty million, six hundred sixty-seven thousand, twenty-five".