40756930 has 8 divisors (see below), whose sum is σ = 73362492. Its totient is φ = 16302768.

The previous prime is 40756913. The next prime is 40756931. The reversal of 40756930 is 3965704.

It can be written as a sum of positive squares in 2 ways, for example, as 32821441 + 7935489 = 5729^2 + 2817^2 .

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

It is a super-2 number, since 2×40756930² = 3322254686049800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40756931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2037837 + ... + 2037856.

Almost surely, 2^40756930 is an apocalyptic number.

40756930 is a deficient number, since it is larger than the sum of its proper divisors (32605562).

40756930 is a wasteful number, since it uses less digits than its factorization.

40756930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4075700.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 40756930 is about 6384.1154438184. The cubic root of 40756930 is about 344.1389435569.

The spelling of 40756930 in words is "forty million, seven hundred fifty-six thousand, nine hundred thirty".