40678650 has 36 divisors (see below), whose sum is σ = 109291182. Its totient is φ = 10847520.

The previous prime is 40678633. The next prime is 40678667. The reversal of 40678650 is 5687604.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40678633) and next prime (40678667).

It can be written as a sum of positive squares in 3 ways, for example, as 15848361 + 24830289 = 3981^2 + 4983^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 44749 + ... + 45648.

Almost surely, 2^40678650 is an apocalyptic number.

40678650 is an abundant number, since it is smaller than the sum of its proper divisors (68612532).

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

40678650 is a wasteful number, since it uses less digits than its factorization.

40678650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90415 (or 90407 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 40678650 is about 6377.9816556651. The cubic root of 40678650 is about 343.9184782937.

It can be divided in two parts, 40678 and 650, that added together give a triangular number (41328 = T₂₈₇).

The spelling of 40678650 in words is "forty million, six hundred seventy-eight thousand, six hundred fifty".