1378222227 has 48 divisors (see below), whose sum is σ = 2081607840. Its totient is φ = 878169600.

The previous prime is 1378222217. The next prime is 1378222231. The reversal of 1378222227 is 7222228731.

It is a happy number.

It is not a de Polignac number, because 1378222227 - 2¹⁶ = 1378156691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1378222191 and 1378222200.

It is not an unprimeable number, because it can be changed into a prime (1378222207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3273477 + ... + 3273897.

It is an arithmetic number, because the mean of its divisors is an integer number (43366830).

Almost surely, 2^1378222227 is an apocalyptic number.

1378222227 is a deficient number, since it is larger than the sum of its proper divisors (703385613).

1378222227 is a wasteful number, since it uses less digits than its factorization.

1378222227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644 (or 641 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 1378222227 is about 37124.4155105505. The cubic root of 1378222227 is about 1112.8579941511.

The spelling of 1378222227 in words is "one billion, three hundred seventy-eight million, two hundred twenty-two thousand, two hundred twenty-seven".