1226829730 has 32 divisors (see below), whose sum is σ = 2525043456. Its totient is φ = 420414144.

The previous prime is 1226829719. The next prime is 1226829733. The reversal of 1226829730 is 379286221.

It is a super-2 number, since 2×1226829730² = 3010222372823745800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1226829733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204027 + ... + 209953.

It is an arithmetic number, because the mean of its divisors is an integer number (78907608).

Almost surely, 2^1226829730 is an apocalyptic number.

1226829730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1226829730 is an abundant number, since it is smaller than the sum of its proper divisors (1298213726).

1226829730 is a wasteful number, since it uses less digits than its factorization.

1226829730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8898.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 1226829730 is about 35026.1292466067. The cubic root of 1226829730 is about 1070.5199470266.

The spelling of 1226829730 in words is "one billion, two hundred twenty-six million, eight hundred twenty-nine thousand, seven hundred thirty".