40244025231 has 32 divisors (see below), whose sum is σ = 61986624000. Its totient is φ = 25784256960.

The previous prime is 40244025197. The next prime is 40244025299. The reversal of 40244025231 is 13252044204.

40244025231 is a `hidden beast` number, since 4 + 0 + 24 + 402 + 5 + 231 = 666.

It is not a de Polignac number, because 40244025231 - 2⁶ = 40244025167 is a prime.

It is a super-2 number, since 2×40244025231² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40244025195 and 40244025204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40244025131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197131 + ... + 345468.

It is an arithmetic number, because the mean of its divisors is an integer number (1937082000).

Almost surely, 2^40244025231 is an apocalyptic number.

40244025231 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

40244025231 is a deficient number, since it is larger than the sum of its proper divisors (21742598769).

40244025231 is a wasteful number, since it uses less digits than its factorization.

40244025231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542716 (or 542710 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 40244025231 its reverse (13252044204), we get a palindrome (53496069435).

The spelling of 40244025231 in words is "forty billion, two hundred forty-four million, twenty-five thousand, two hundred thirty-one".