1245378222 has 36 divisors (see below), whose sum is σ = 2965926600. Its totient is φ = 377386680.

The previous prime is 1245378209. The next prime is 1245378229. The reversal of 1245378222 is 2228735421.

1245378222 is a `hidden beast` number, since 1 + 24 + 537 + 82 + 22 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245378229) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 283722 + ... + 288077.

It is an arithmetic number, because the mean of its divisors is an integer number (82386850).

Almost surely, 2^1245378222 is an apocalyptic number.

1245378222 is an abundant number, since it is smaller than the sum of its proper divisors (1720548378).

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

1245378222 is a wasteful number, since it uses less digits than its factorization.

1245378222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571829 (or 571815 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 1245378222 is about 35289.9167185189. The cubic root of 1245378222 is about 1075.8880628477. Note that the first 3 decimals are identical.

The spelling of 1245378222 in words is "one billion, two hundred forty-five million, three hundred seventy-eight thousand, two hundred twenty-two".