1236426442 has 8 divisors (see below), whose sum is σ = 1882321056. Its totient is φ = 608986092.

The previous prime is 1236426431. The next prime is 1236426461. The reversal of 1236426442 is 2446246321.

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

It is a junction number, because it is equal to n+sod(n) for n = 1236426398 and 1236426407.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4613398 + ... + 4613665.

It is an arithmetic number, because the mean of its divisors is an integer number (235290132).

Almost surely, 2^1236426442 is an apocalyptic number.

1236426442 is a deficient number, since it is larger than the sum of its proper divisors (645894614).

1236426442 is an equidigital number, since it uses as much as digits as its factorization.

1236426442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9227132.

The product of its digits is 55296, while the sum is 34.

The square root of 1236426442 is about 35162.8559989088. The cubic root of 1236426442 is about 1073.3040334024.

The spelling of 1236426442 in words is "one billion, two hundred thirty-six million, four hundred twenty-six thousand, four hundred forty-two".