2978309376 has 648 divisors, whose sum is σ = 11050550784. Its totient is φ = 766402560.

The previous prime is 2978309363. The next prime is 2978309381. The reversal of 2978309376 is 6739038792.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 80494830 + ... + 80494866.

Almost surely, 2^2978309376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2978309376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5525275392).

2978309376 is an abundant number, since it is smaller than the sum of its proper divisors (8072241408).

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

2978309376 is a wasteful number, since it uses less digits than its factorization.

2978309376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 54.

The square root of 2978309376 is about 54573.8891412368. The cubic root of 2978309376 is about 1438.7652378228.

The spelling of 2978309376 in words is "two billion, nine hundred seventy-eight million, three hundred nine thousand, three hundred seventy-six".