2278042572 has 24 divisors (see below), whose sum is σ = 5724312496. Its totient is φ = 700936128.

The previous prime is 2278042549. The next prime is 2278042579. The reversal of 2278042572 is 2752408722.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 2278042572.

It is not an unprimeable number, because it can be changed into a prime (2278042579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7301263 + ... + 7301574.

Almost surely, 2^2278042572 is an apocalyptic number.

It is an amenable number.

2278042572 is an abundant number, since it is smaller than the sum of its proper divisors (3446269924).

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

2278042572 is a wasteful number, since it uses less digits than its factorization.

2278042572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14602857 (or 14602855 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 39.

The square root of 2278042572 is about 47728.8442349068. The cubic root of 2278042572 is about 1315.7921123132.

The spelling of 2278042572 in words is "two billion, two hundred seventy-eight million, forty-two thousand, five hundred seventy-two".