40690334 has 4 divisors (see below), whose sum is σ = 61035504. Its totient is φ = 20345166.

The previous prime is 40690301. The next prime is 40690337. The reversal of 40690334 is 43309604.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 40690297 and 40690306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40690337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10172582 + ... + 10172585.

It is an arithmetic number, because the mean of its divisors is an integer number (15258876).

Almost surely, 2^40690334 is an apocalyptic number.

40690334 is a deficient number, since it is larger than the sum of its proper divisors (20345170).

40690334 is a wasteful number, since it uses less digits than its factorization.

40690334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20345169.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 40690334 is about 6378.8975536530. The cubic root of 40690334 is about 343.9514026806.

Adding to 40690334 its reverse (43309604), we get a palindrome (83999938).

The spelling of 40690334 in words is "forty million, six hundred ninety thousand, three hundred thirty-four".