40245433431 has 8 divisors (see below), whose sum is σ = 61326374784. Its totient is φ = 22997390520.

The previous prime is 40245433391. The next prime is 40245433439. The reversal of 40245433431 is 13433454204.

40245433431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40245433431 - 2²² = 40241239127 is a prime.

It is a super-2 number, since 2×40245433431² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40245433392 and 40245433401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40245433439) 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, 958224585 + ... + 958224626.

It is an arithmetic number, because the mean of its divisors is an integer number (7665796848).

Almost surely, 2^40245433431 is an apocalyptic number.

40245433431 is a deficient number, since it is larger than the sum of its proper divisors (21080941353).

40245433431 is a wasteful number, since it uses less digits than its factorization.

40245433431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916449221.

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 40245433431 its reverse (13433454204), we get a palindrome (53678887635).

The spelling of 40245433431 in words is "forty billion, two hundred forty-five million, four hundred thirty-three thousand, four hundred thirty-one".