2904821378 has 4 divisors (see below), whose sum is σ = 4357232070. Its totient is φ = 1452410688.

The previous prime is 2904821371. The next prime is 2904821383. The reversal of 2904821378 is 8731284092.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2901222769 + 3598609 = 53863^2 + 1897^2 .

It is not an unprimeable number, because it can be changed into a prime (2904821371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 726205343 + ... + 726205346.

Almost surely, 2^2904821378 is an apocalyptic number.

2904821378 is a deficient number, since it is larger than the sum of its proper divisors (1452410692).

2904821378 is a wasteful number, since it uses less digits than its factorization.

2904821378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452410691.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 2904821378 is about 53896.3948516039. The cubic root of 2904821378 is about 1426.8329961426.

The spelling of 2904821378 in words is "two billion, nine hundred four million, eight hundred twenty-one thousand, three hundred seventy-eight".