40678780 has 12 divisors (see below), whose sum is σ = 85425480. Its totient is φ = 16271504.

The previous prime is 40678777. The next prime is 40678819. The reversal of 40678780 is 8787604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1016950 + ... + 1016989.

It is an arithmetic number, because the mean of its divisors is an integer number (7118790).

Almost surely, 2^40678780 is an apocalyptic number.

It is an amenable number.

40678780 is an abundant number, since it is smaller than the sum of its proper divisors (44746700).

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

40678780 is a wasteful number, since it uses less digits than its factorization.

40678780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033948 (or 2033946 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 40678780 is about 6377.9918469688. The cubic root of 40678780 is about 343.9188446559.

The spelling of 40678780 in words is "forty million, six hundred seventy-eight thousand, seven hundred eighty".