40246431213 has 16 divisors (see below), whose sum is σ = 53739406656. Its totient is φ = 26792238720.

The previous prime is 40246431179. The next prime is 40246431229. The reversal of 40246431213 is 31213464204.

It is not a de Polignac number, because 40246431213 - 2⁶ = 40246431149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40246431233) 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, 7697106 + ... + 7702332.

It is an arithmetic number, because the mean of its divisors is an integer number (3358712916).

Almost surely, 2^40246431213 is an apocalyptic number.

It is an amenable number.

40246431213 is a deficient number, since it is larger than the sum of its proper divisors (13492975443).

40246431213 is a wasteful number, since it uses less digits than its factorization.

40246431213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8444.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 40246431213 its reverse (31213464204), we get a palindrome (71459895417).

The spelling of 40246431213 in words is "forty billion, two hundred forty-six million, four hundred thirty-one thousand, two hundred thirteen".