40434131020 has 48 divisors (see below), whose sum is σ = 89708653440. Its totient is φ = 15283675904.

The previous prime is 40434130963. The next prime is 40434131033. The reversal of 40434131020 is 2013143404.

It is a junction number, because it is equal to n+sod(n) for n = 40434130982 and 40434131000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 714379 + ... + 768898.

It is an arithmetic number, because the mean of its divisors is an integer number (1868930280).

Almost surely, 2^40434131020 is an apocalyptic number.

It is an amenable number.

40434131020 is an abundant number, since it is smaller than the sum of its proper divisors (49274522420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40434131020 is a wasteful number, since it uses less digits than its factorization.

40434131020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483362 (or 1483360 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 40434131020 its reverse (2013143404), we get a palindrome (42447274424).

The spelling of 40434131020 in words is "forty billion, four hundred thirty-four million, one hundred thirty-one thousand, twenty".