40690235 has 8 divisors (see below), whose sum is σ = 49656240. Its totient is φ = 32000224.

The previous prime is 40690217. The next prime is 40690249. The reversal of 40690235 is 53209604.

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

It is a cyclic number.

It is not a de Polignac number, because 40690235 - 2²² = 36495931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40690198 and 40690207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68672 + ... + 69261.

It is an arithmetic number, because the mean of its divisors is an integer number (6207030).

Almost surely, 2^40690235 is an apocalyptic number.

40690235 is a deficient number, since it is larger than the sum of its proper divisors (8966005).

40690235 is a wasteful number, since it uses less digits than its factorization.

40690235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137997.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 40690235 is about 6378.8897936867. The cubic root of 40690235 is about 343.9511237346.

Adding to 40690235 its reverse (53209604), we get a palindrome (93899839).

The spelling of 40690235 in words is "forty million, six hundred ninety thousand, two hundred thirty-five".