1345222650 has 48 divisors (see below), whose sum is σ = 3385970784. Its totient is φ = 353369280.

The previous prime is 1345222603. The next prime is 1345222661. The reversal of 1345222650 is 562225431.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56877 + ... + 76976.

It is an arithmetic number, because the mean of its divisors is an integer number (70541058).

Almost surely, 2^1345222650 is an apocalyptic number.

1345222650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1345222650 is an abundant number, since it is smaller than the sum of its proper divisors (2040748134).

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

1345222650 is a wasteful number, since it uses less digits than its factorization.

1345222650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133935 (or 133930 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1345222650 is about 36677.2770254282. The cubic root of 1345222650 is about 1103.9042118504.

The spelling of 1345222650 in words is "one billion, three hundred forty-five million, two hundred twenty-two thousand, six hundred fifty".