40212070690 has 16 divisors (see below), whose sum is σ = 78961884480. Its totient is φ = 14622571120.

The previous prime is 40212070667. The next prime is 40212070699. The reversal of 40212070690 is 9607021204.

It is a super-2 number, since 2×40212070690² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40212070699) 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, 182782030 + ... + 182782249.

It is an arithmetic number, because the mean of its divisors is an integer number (4935117780).

Almost surely, 2^40212070690 is an apocalyptic number.

40212070690 is a deficient number, since it is larger than the sum of its proper divisors (38749813790).

40212070690 is a wasteful number, since it uses less digits than its factorization.

40212070690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365564297.

The product of its (nonzero) digits is 6048, while the sum is 31.

Adding to 40212070690 its reverse (9607021204), we get a palindrome (49819091894).

The spelling of 40212070690 in words is "forty billion, two hundred twelve million, seventy thousand, six hundred ninety".