40001058 has 12 divisors (see below), whose sum is σ = 86668998. Its totient is φ = 13333680.

The previous prime is 40001057. The next prime is 40001069. The reversal of 40001058 is 85010004.

It can be written as a sum of positive squares in only one way, i.e., 25735329 + 14265729 = 5073^2 + 3777^2 .

It is a super-2 number, since 2×40001058² = 3200169282238728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 2222281 = 40001058 / (4 + 0 + 0 + 0 + 1 + 0 + 5 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 40001058.

It is not an unprimeable number, because it can be changed into a prime (40001057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1111123 + ... + 1111158.

Almost surely, 2^40001058 is an apocalyptic number.

40001058 is an abundant number, since it is smaller than the sum of its proper divisors (46667940).

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

40001058 is a wasteful number, since it uses less digits than its factorization.

40001058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222289 (or 2222286 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 40001058 is about 6324.6389620278. The cubic root of 40001058 is about 341.9982045663.

The spelling of 40001058 in words is "forty million, one thousand, fifty-eight".