40208052 has 24 divisors (see below), whose sum is σ = 94788736. Its totient is φ = 13264128.

The previous prime is 40208041. The next prime is 40208057. The reversal of 40208052 is 25080204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40208057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16108 + ... + 18435.

Almost surely, 2^40208052 is an apocalyptic number.

It is an amenable number.

40208052 is an abundant number, since it is smaller than the sum of its proper divisors (54580684).

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

40208052 is a wasteful number, since it uses less digits than its factorization.

40208052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34647 (or 34645 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 40208052 is about 6340.9819428855. The cubic root of 40208052 is about 342.5871041357.

Adding to 40208052 its reverse (25080204), we get a palindrome (65288256).

The spelling of 40208052 in words is "forty million, two hundred eight thousand, fifty-two".