40758081 has 16 divisors (see below), whose sum is σ = 66885504. Its totient is φ = 21498624.

The previous prime is 40758037. The next prime is 40758089. The reversal of 40758081 is 18085704.

It is a happy number.

It is not a de Polignac number, because 40758081 - 2⁹ = 40757569 is a prime.

It is a super-2 number, since 2×40758081² = 3322442333605122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40758089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74376 + ... + 74921.

It is an arithmetic number, because the mean of its divisors is an integer number (4180344).

Almost surely, 2^40758081 is an apocalyptic number.

It is an amenable number.

40758081 is a deficient number, since it is larger than the sum of its proper divisors (26127423).

40758081 is a wasteful number, since it uses less digits than its factorization.

40758081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149320.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 40758081 is about 6384.2055887949. The cubic root of 40758081 is about 344.1421830893.

The spelling of 40758081 in words is "forty million, seven hundred fifty-eight thousand, eighty-one".