40756537 has 8 divisors (see below), whose sum is σ = 42145280. Its totient is φ = 39372480.

The previous prime is 40756511. The next prime is 40756553. The reversal of 40756537 is 73565704.

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

It is not a de Polignac number, because 40756537 - 2⁷ = 40756409 is a prime.

It is a super-2 number, since 2×40756537² = 3322190616464738, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40756496 and 40756505.

It is not an unprimeable number, because it can be changed into a prime (40757537) 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, 30628 + ... + 31930.

It is an arithmetic number, because the mean of its divisors is an integer number (5268160).

Almost surely, 2^40756537 is an apocalyptic number.

It is an amenable number.

40756537 is a deficient number, since it is larger than the sum of its proper divisors (1388743).

40756537 is a wasteful number, since it uses less digits than its factorization.

40756537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2343.

The product of its (nonzero) digits is 88200, while the sum is 37.

The square root of 40756537 is about 6384.0846642256. The cubic root of 40756537 is about 344.1378374297.

The spelling of 40756537 in words is "forty million, seven hundred fifty-six thousand, five hundred thirty-seven".