1356438480 has 160 divisors (see below), whose sum is σ = 4361530368. Its totient is φ = 348364800.

The previous prime is 1356438341. The next prime is 1356438493. The reversal of 1356438480 is 848346531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2507010 + ... + 2507550.

Almost surely, 2^1356438480 is an apocalyptic number.

1356438480 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 1356438480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2180765184).

1356438480 is an abundant number, since it is smaller than the sum of its proper divisors (3005091888).

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

1356438480 is a wasteful number, since it uses less digits than its factorization.

1356438480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925 (or 919 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 1356438480 is about 36829.8585389626. The cubic root of 1356438480 is about 1106.9636684503.

The spelling of 1356438480 in words is "one billion, three hundred fifty-six million, four hundred thirty-eight thousand, four hundred eighty".