1234013280 has 192 divisors, whose sum is σ = 4050321408. Its totient is φ = 315463680.

The previous prime is 1234013279. The next prime is 1234013281. The reversal of 1234013280 is 823104321.

It is an interprime number because it is at equal distance from previous prime (1234013279) and next prime (1234013281).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1234013280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234013281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1889434 + ... + 1890086.

It is an arithmetic number, because the mean of its divisors is an integer number (21095424).

Almost surely, 2^1234013280 is an apocalyptic number.

1234013280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1234013280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2025160704).

1234013280 is an abundant number, since it is smaller than the sum of its proper divisors (2816308128).

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

1234013280 is a wasteful number, since it uses less digits than its factorization.

1234013280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829 (or 821 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1234013280 is about 35128.5251611849. The cubic root of 1234013280 is about 1072.6053145587.

The spelling of 1234013280 in words is "one billion, two hundred thirty-four million, thirteen thousand, two hundred eighty".