40678236 has 18 divisors (see below), whose sum is σ = 102825632. Its totient is φ = 13559400.

The previous prime is 40678219. The next prime is 40678241. The reversal of 40678236 is 63287604.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1129951 = 40678236 / (4 + 0 + 6 + 7 + 8 + 2 + 3 + 6).

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 40678236.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 564940 + ... + 565011.

Almost surely, 2^40678236 is an apocalyptic number.

It is an amenable number.

40678236 is an abundant number, since it is smaller than the sum of its proper divisors (62147396).

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

40678236 is a wasteful number, since it uses less digits than its factorization.

40678236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129961 (or 1129956 counting only the distinct ones).

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

The square root of 40678236 is about 6377.9492001740. The cubic root of 40678236 is about 343.9173115659.

The spelling of 40678236 in words is "forty million, six hundred seventy-eight thousand, two hundred thirty-six".