1226445400 has 48 divisors (see below), whose sum is σ = 2855051640. Its totient is φ = 489964800.

The previous prime is 1226445397. The next prime is 1226445403. The reversal of 1226445400 is 45446221.

It is an interprime number because it is at equal distance from previous prime (1226445397) and next prime (1226445403).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226445403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178020 + ... + 184780.

Almost surely, 2^1226445400 is an apocalyptic number.

1226445400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1226445400 is an abundant number, since it is smaller than the sum of its proper divisors (1628606240).

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

1226445400 is a wasteful number, since it uses less digits than its factorization.

1226445400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7684 (or 7675 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 1226445400 is about 35020.6424841121. The cubic root of 1226445400 is about 1070.4081477845.

The spelling of 1226445400 in words is "one billion, two hundred twenty-six million, four hundred forty-five thousand, four hundred".