1229379634 has 8 divisors (see below), whose sum is σ = 2107507968. Its totient is φ = 526876980.

The previous prime is 1229379631. The next prime is 1229379661. The reversal of 1229379634 is 4369739221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1229379634² = 3022748568987947912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1229379631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43906402 + ... + 43906429.

It is an arithmetic number, because the mean of its divisors is an integer number (263438496).

Almost surely, 2^1229379634 is an apocalyptic number.

1229379634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1229379634 is a deficient number, since it is larger than the sum of its proper divisors (878128334).

1229379634 is an equidigital number, since it uses as much as digits as its factorization.

1229379634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87812840.

The product of its digits is 489888, while the sum is 46.

The square root of 1229379634 is about 35062.5103778951. The cubic root of 1229379634 is about 1071.2611077630.

The spelling of 1229379634 in words is "one billion, two hundred twenty-nine million, three hundred seventy-nine thousand, six hundred thirty-four".