40042002040 has 32 divisors (see below), whose sum is σ = 90107257680. Its totient is φ = 16014533632.

The previous prime is 40042001929. The next prime is 40042002071. The reversal of 40042002040 is 4020024004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231159 + ... + 365401.

Almost surely, 2^40042002040 is an apocalyptic number.

40042002040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40042002040 is an abundant number, since it is smaller than the sum of its proper divisors (50065255640).

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

40042002040 is a wasteful number, since it uses less digits than its factorization.

40042002040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141711 (or 141707 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 40042002040 its reverse (4020024004), we get a palindrome (44062026044).

The spelling of 40042002040 in words is "forty billion, forty-two million, two thousand, forty", and thus it is an eban number.