40213061 has 16 divisors (see below), whose sum is σ = 47309184. Its totient is φ = 33468864.

The previous prime is 40213057. The next prime is 40213073. The reversal of 40213061 is 16031204.

It is not a de Polignac number, because 40213061 - 2² = 40213057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40213001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39191 + ... + 40203.

It is an arithmetic number, because the mean of its divisors is an integer number (2956824).

Almost surely, 2^40213061 is an apocalyptic number.

It is an amenable number.

40213061 is a deficient number, since it is larger than the sum of its proper divisors (7096123).

40213061 is a wasteful number, since it uses less digits than its factorization.

40213061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 40213061 is about 6341.3769009577. The cubic root of 40213061 is about 342.6013297072.

Adding to 40213061 its reverse (16031204), we get a palindrome (56244265).

The spelling of 40213061 in words is "forty million, two hundred thirteen thousand, sixty-one".