2978409582 has 32 divisors (see below), whose sum is σ = 6653004960. Its totient is φ = 987655680.

The previous prime is 2978409559. The next prime is 2978409583. The reversal of 2978409582 is 2859048792.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978409583) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 132469 + ... + 153312.

It is an arithmetic number, because the mean of its divisors is an integer number (207906405).

Almost surely, 2^2978409582 is an apocalyptic number.

2978409582 is an abundant number, since it is smaller than the sum of its proper divisors (3674595378).

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

2978409582 is a wasteful number, since it uses less digits than its factorization.

2978409582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285985 (or 285979 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 2978409582 is about 54574.8072099206. The cubic root of 2978409582 is about 1438.7813735197.

The spelling of 2978409582 in words is "two billion, nine hundred seventy-eight million, four hundred nine thousand, five hundred eighty-two".