40040020510 has 32 divisors (see below), whose sum is σ = 84120560640. Its totient is φ = 13435920672.

The previous prime is 40040020459. The next prime is 40040020513. The reversal of 40040020510 is 1502004004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40040020513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6081820 + ... + 6088399.

It is an arithmetic number, because the mean of its divisors is an integer number (2628767520).

Almost surely, 2^40040020510 is an apocalyptic number.

40040020510 is an abundant number, since it is smaller than the sum of its proper divisors (44080540130).

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

40040020510 is a wasteful number, since it uses less digits than its factorization.

40040020510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12170280.

The product of its (nonzero) digits is 160, while the sum is 16.

Adding to 40040020510 its reverse (1502004004), we get a palindrome (41542024514).

The spelling of 40040020510 in words is "forty billion, forty million, twenty thousand, five hundred ten".