40678757 has 8 divisors (see below), whose sum is σ = 46902336. Its totient is φ = 34558272.

The previous prime is 40678747. The next prime is 40678777. The reversal of 40678757 is 75787604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40678757 - 2⁴ = 40678741 is a prime.

It is a super-2 number, since 2×40678757² = 3309522542130098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40678747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24923 + ... + 26504.

It is an arithmetic number, because the mean of its divisors is an integer number (5862792).

Almost surely, 2^40678757 is an apocalyptic number.

It is an amenable number.

40678757 is a deficient number, since it is larger than the sum of its proper divisors (6223579).

40678757 is a wasteful number, since it uses less digits than its factorization.

40678757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51547.

The product of its (nonzero) digits is 329280, while the sum is 44.

The square root of 40678757 is about 6377.9900438931. The cubic root of 40678757 is about 343.9187798380.

The spelling of 40678757 in words is "forty million, six hundred seventy-eight thousand, seven hundred fifty-seven".