40638058 has 8 divisors (see below), whose sum is σ = 64542852. Its totient is φ = 19123776.

The previous prime is 40638049. The next prime is 40638067. The reversal of 40638058 is 85083604.

It is an interprime number because it is at equal distance from previous prime (40638049) and next prime (40638067).

It can be written as a sum of positive squares in 2 ways, for example, as 38526849 + 2111209 = 6207^2 + 1453^2 .

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

It is a super-3 number, since 3×40638058³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 1195237 = 40638058 / (4 + 0 + 6 + 3 + 8 + 0 + 5 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 597585 + ... + 597652.

Almost surely, 2^40638058 is an apocalyptic number.

40638058 is a deficient number, since it is larger than the sum of its proper divisors (23904794).

40638058 is a wasteful number, since it uses less digits than its factorization.

40638058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195256.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 40638058 is about 6374.7986634873. The cubic root of 40638058 is about 343.8040449240.

It can be divided in two parts, 4063 and 8058, that added together give a palindrome (12121).

The spelling of 40638058 in words is "forty million, six hundred thirty-eight thousand, fifty-eight".