2278434564 has 72 divisors (see below), whose sum is σ = 6587916608. Its totient is φ = 650410560.

The previous prime is 2278434553. The next prime is 2278434569. The reversal of 2278434564 is 4654348722.

It is a happy number.

2278434564 is a `hidden beast` number, since 2 + 2 + 7 + 84 + 3 + 4 + 564 = 666.

It is not an unprimeable number, because it can be changed into a prime (2278434569) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 344739 + ... + 351285.

Almost surely, 2^2278434564 is an apocalyptic number.

It is an amenable number.

2278434564 is an abundant number, since it is smaller than the sum of its proper divisors (4309482044).

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

2278434564 is a wasteful number, since it uses less digits than its factorization.

2278434564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7945 (or 7940 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 45.

The square root of 2278434564 is about 47732.9505059136. The cubic root of 2278434564 is about 1315.8675792085.

The spelling of 2278434564 in words is "two billion, two hundred seventy-eight million, four hundred thirty-four thousand, five hundred sixty-four".