40000302780 has 24 divisors (see below), whose sum is σ = 112000847952. Its totient is φ = 10666747392.

The previous prime is 40000302697. The next prime is 40000302791. The reversal of 40000302780 is 8720300004.

It is a self number, because there is not a number n which added to its sum of digits gives 40000302780.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333335797 + ... + 333335916.

It is an arithmetic number, because the mean of its divisors is an integer number (4666701998).

Almost surely, 2^40000302780 is an apocalyptic number.

It is an amenable number.

40000302780 is an abundant number, since it is smaller than the sum of its proper divisors (72000545172).

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

40000302780 is a wasteful number, since it uses less digits than its factorization.

40000302780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666671725 (or 666671723 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

Adding to 40000302780 its reverse (8720300004), we get a palindrome (48720602784).

The spelling of 40000302780 in words is "forty billion, three hundred two thousand, seven hundred eighty".