1206784426 has 8 divisors (see below), whose sum is σ = 1810388160. Its totient is φ = 603321708.

The previous prime is 1206784351. The next prime is 1206784433. The reversal of 1206784426 is 6244876021.

It is a happy number.

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

It is a super-2 number, since 2×1206784426² = 2912657301672298952, which contains 22 as substring.

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, 10336 + ... + 50203.

It is an arithmetic number, because the mean of its divisors is an integer number (226298520).

Almost surely, 2^1206784426 is an apocalyptic number.

1206784426 is a deficient number, since it is larger than the sum of its proper divisors (603603734).

1206784426 is an equidigital number, since it uses as much as digits as its factorization.

1206784426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70508.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 1206784426 is about 34738.8028866857. The cubic root of 1206784426 is about 1064.6574536638.

The spelling of 1206784426 in words is "one billion, two hundred six million, seven hundred eighty-four thousand, four hundred twenty-six".