402782939380 has 48 divisors (see below), whose sum is σ = 856695168000. Its totient is φ = 159047006976.

The previous prime is 402782939327. The next prime is 402782939381. The reversal of 402782939380 is 83939287204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402782939381) 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, 11245941 + ... + 11281699.

It is an arithmetic number, because the mean of its divisors is an integer number (17847816000).

Almost surely, 2^402782939380 is an apocalyptic number.

It is an amenable number.

402782939380 is an abundant number, since it is smaller than the sum of its proper divisors (453912228620).

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

402782939380 is a wasteful number, since it uses less digits than its factorization.

402782939380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42976 (or 42974 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 402782939380 in words is "four hundred two billion, seven hundred eighty-two million, nine hundred thirty-nine thousand, three hundred eighty".