40695638 has 8 divisors (see below), whose sum is σ = 61903440. Its totient is φ = 20061160.

The previous prime is 40695623. The next prime is 40695659. The reversal of 40695638 is 83659604.

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

It is a super-2 number, since 2×40695638² = 3312269904454088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40695595 and 40695604.

It is a congruent number.

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, 143153 + ... + 143436.

It is an arithmetic number, because the mean of its divisors is an integer number (7737930).

Almost surely, 2^40695638 is an apocalyptic number.

40695638 is a deficient number, since it is larger than the sum of its proper divisors (21207802).

40695638 is a wasteful number, since it uses less digits than its factorization.

40695638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286662.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 40695638 is about 6379.3132859266. The cubic root of 40695638 is about 343.9663467619.

The spelling of 40695638 in words is "forty million, six hundred ninety-five thousand, six hundred thirty-eight".