40678623 has 12 divisors (see below), whose sum is σ = 58885008. Its totient is φ = 27060480.

The previous prime is 40678621. The next prime is 40678633. The reversal of 40678623 is 32687604.

It is not a de Polignac number, because 40678623 - 2¹ = 40678621 is a prime.

It is a super-2 number, since 2×40678623² = 3309500738352258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40678621) 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, 258 + ... + 9023.

It is an arithmetic number, because the mean of its divisors is an integer number (4907084).

Almost surely, 2^40678623 is an apocalyptic number.

40678623 is a deficient number, since it is larger than the sum of its proper divisors (18206385).

40678623 is a wasteful number, since it uses less digits than its factorization.

40678623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9774 (or 9771 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 40678623 is about 6377.9795390076. The cubic root of 40678623 is about 343.9184022030.

The spelling of 40678623 in words is "forty million, six hundred seventy-eight thousand, six hundred twenty-three".