40212051 has 12 divisors (see below), whose sum is σ = 58933896. Its totient is φ = 24370720.

The previous prime is 40212047. The next prime is 40212059. The reversal of 40212051 is 15021204.

40212051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40212051 - 2² = 40212047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40212051.

It is not an unprimeable number, because it can be changed into a prime (40212059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55026 + ... + 55751.

It is an arithmetic number, because the mean of its divisors is an integer number (4911158).

Almost surely, 2^40212051 is an apocalyptic number.

40212051 is a deficient number, since it is larger than the sum of its proper divisors (18721845).

40212051 is a wasteful number, since it uses less digits than its factorization.

40212051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110802 (or 110791 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 40212051 is about 6341.2972647558. The cubic root of 40212051 is about 342.5984614000.

Adding to 40212051 its reverse (15021204), we get a palindrome (55233255).

The spelling of 40212051 in words is "forty million, two hundred twelve thousand, fifty-one".