2930021384 has 8 divisors (see below), whose sum is σ = 5493790110. Its totient is φ = 1465010688.

The previous prime is 2930021371. The next prime is 2930021399. The reversal of 2930021384 is 4831200392.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2755200100 + 174821284 = 52490^2 + 13222^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 2930021384.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 183126329 + ... + 183126344.

Almost surely, 2^2930021384 is an apocalyptic number.

It is an amenable number.

2930021384 is a deficient number, since it is larger than the sum of its proper divisors (2563768726).

2930021384 is a wasteful number, since it uses less digits than its factorization.

2930021384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366252679 (or 366252675 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 2930021384 is about 54129.6719369331. The cubic root of 2930021384 is about 1430.9471587119.

The spelling of 2930021384 in words is "two billion, nine hundred thirty million, twenty-one thousand, three hundred eighty-four".