2273742164 has 6 divisors (see below), whose sum is σ = 3979048794. Its totient is φ = 1136871080.

The previous prime is 2273742143. The next prime is 2273742173. The reversal of 2273742164 is 4612473722.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2262904900 + 10837264 = 47570^2 + 3292^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284217767 + ... + 284217774.

It is an arithmetic number, because the mean of its divisors is an integer number (663174799).

Almost surely, 2^2273742164 is an apocalyptic number.

It is an amenable number.

2273742164 is a deficient number, since it is larger than the sum of its proper divisors (1705306630).

2273742164 is a wasteful number, since it uses less digits than its factorization.

2273742164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568435545 (or 568435543 counting only the distinct ones).

The product of its digits is 112896, while the sum is 38.

The square root of 2273742164 is about 47683.7725437072. The cubic root of 2273742164 is about 1314.9636221967.

The spelling of 2273742164 in words is "two billion, two hundred seventy-three million, seven hundred forty-two thousand, one hundred sixty-four".