1363215420 has 504 divisors, whose sum is σ = 5317016544. Its totient is φ = 287214336.

The previous prime is 1363215419. The next prime is 1363215443. The reversal of 1363215420 is 245123631.

1363215420 is a `hidden beast` number, since 1 + 3 + 632 + 1 + 5 + 4 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 36843642 + ... + 36843678.

It is an arithmetic number, because the mean of its divisors is an integer number (10549636).

Almost surely, 2^1363215420 is an apocalyptic number.

1363215420 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 1363215420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2658508272).

1363215420 is an abundant number, since it is smaller than the sum of its proper divisors (3953801124).

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

1363215420 is a wasteful number, since it uses less digits than its factorization.

1363215420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 1363215420 is about 36921.7472500964. The cubic root of 1363215420 is about 1108.8041174581.

The spelling of 1363215420 in words is "one billion, three hundred sixty-three million, two hundred fifteen thousand, four hundred twenty".