1356234880 has 512 divisors, whose sum is σ = 4565030400. Its totient is φ = 371589120.

The previous prime is 1356234871. The next prime is 1356234883. The reversal of 1356234880 is 884326531.

It is a super-2 number, since 2×1356234880² = 3678746099457228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (1356234883) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18578524 + ... + 18578596.

It is an arithmetic number, because the mean of its divisors is an integer number (8916075).

Almost surely, 2^1356234880 is an apocalyptic number.

1356234880 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 1356234880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2282515200).

1356234880 is an abundant number, since it is smaller than the sum of its proper divisors (3208795520).

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

1356234880 is a wasteful number, since it uses less digits than its factorization.

1356234880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 1356234880 is about 36827.0943735723. The cubic root of 1356234880 is about 1106.9082809820.

The spelling of 1356234880 in words is "one billion, three hundred fifty-six million, two hundred thirty-four thousand, eight hundred eighty".