40020212445 has 32 divisors (see below), whose sum is σ = 67635093504. Its totient is φ = 20175220800.

The previous prime is 40020212429. The next prime is 40020212461. The reversal of 40020212445 is 54421202004.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40020212429) and next prime (40020212461).

It is not a de Polignac number, because 40020212445 - 2⁴ = 40020212429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 980761 + ... + 1020750.

It is an arithmetic number, because the mean of its divisors is an integer number (2113596672).

Almost surely, 2^40020212445 is an apocalyptic number.

It is an amenable number.

40020212445 is a deficient number, since it is larger than the sum of its proper divisors (27614881059).

40020212445 is a wasteful number, since it uses less digits than its factorization.

40020212445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001593.

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 40020212445 its reverse (54421202004), we get a palindrome (94441414449).

The spelling of 40020212445 in words is "forty billion, twenty million, two hundred twelve thousand, four hundred forty-five".