1228406826 has 8 divisors (see below), whose sum is σ = 2456813664. Its totient is φ = 409468940.

The previous prime is 1228406821. The next prime is 1228406831. The reversal of 1228406826 is 6286048221.

It is an interprime number because it is at equal distance from previous prime (1228406821) and next prime (1228406831).

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

1228406826 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1228406821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102367230 + ... + 102367241.

It is an arithmetic number, because the mean of its divisors is an integer number (307101708).

Almost surely, 2^1228406826 is an apocalyptic number.

1228406826 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1228406826 is a wasteful number, since it uses less digits than its factorization.

1228406826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204734476.

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 1228406826 is about 35048.6351517431. The cubic root of 1228406826 is about 1070.9784702583.

The spelling of 1228406826 in words is "one billion, two hundred twenty-eight million, four hundred six thousand, eight hundred twenty-six".