1361378424 has 128 divisors (see below), whose sum is σ = 4152729600. Its totient is φ = 363242880.

The previous prime is 1361378399. The next prime is 1361378429. The reversal of 1361378424 is 4248731631.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361378429) 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, 223629 + ... + 229635.

It is an arithmetic number, because the mean of its divisors is an integer number (32443200).

Almost surely, 2^1361378424 is an apocalyptic number.

1361378424 is a gapful number since it is divisible by the number (14) 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 1361378424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2076364800).

1361378424 is an abundant number, since it is smaller than the sum of its proper divisors (2791351176).

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

1361378424 is a wasteful number, since it uses less digits than its factorization.

1361378424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6113 (or 6109 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 1361378424 is about 36896.8619803907. The cubic root of 1361378424 is about 1108.3058385828.

The spelling of 1361378424 in words is "one billion, three hundred sixty-one million, three hundred seventy-eight thousand, four hundred twenty-four".