40250390031 has 12 divisors (see below), whose sum is σ = 58224584808. Its totient is φ = 26794301424.

The previous prime is 40250390029. The next prime is 40250390041. The reversal of 40250390031 is 13009305204.

40250390031 is a `hidden beast` number, since 40 + 2 + 503 + 90 + 0 + 31 = 666.

It is not a de Polignac number, because 40250390031 - 2¹ = 40250390029 is a prime.

It is a super-2 number, since 2×40250390031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40250389977 and 40250390004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40250390021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3267840 + ... + 3280133.

It is an arithmetic number, because the mean of its divisors is an integer number (4852048734).

Almost surely, 2^40250390031 is an apocalyptic number.

40250390031 is a deficient number, since it is larger than the sum of its proper divisors (17974194777).

40250390031 is a wasteful number, since it uses less digits than its factorization.

40250390031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6548662 (or 6548659 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

Adding to 40250390031 its reverse (13009305204), we get a palindrome (53259695235).

The spelling of 40250390031 in words is "forty billion, two hundred fifty million, three hundred ninety thousand, thirty-one".