1228072630 has 16 divisors (see below), whose sum is σ = 2213137584. Its totient is φ = 490649760.

The previous prime is 1228072627. The next prime is 1228072633. The reversal of 1228072630 is 362708221.

It is an interprime number because it is at equal distance from previous prime (1228072627) and next prime (1228072633).

It is a junction number, because it is equal to n+sod(n) for n = 1228072592 and 1228072601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228072633) 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, 63456 + ... + 80515.

It is an arithmetic number, because the mean of its divisors is an integer number (138321099).

Almost surely, 2^1228072630 is an apocalyptic number.

1228072630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1228072630 is a deficient number, since it is larger than the sum of its proper divisors (985064954).

1228072630 is a wasteful number, since it uses less digits than its factorization.

1228072630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144831.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 1228072630 is about 35043.8672238096. The cubic root of 1228072630 is about 1070.8813392493.

The spelling of 1228072630 in words is "one billion, two hundred twenty-eight million, seventy-two thousand, six hundred thirty".