1355562420 has 96 divisors (see below), whose sum is σ = 3927813120. Its totient is φ = 348948480.

The previous prime is 1355562419. The next prime is 1355562421. The reversal of 1355562420 is 242655531.

It is an interprime number because it is at equal distance from previous prime (1355562419) and next prime (1355562421).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355562421) 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, 1102366 + ... + 1103594.

It is an arithmetic number, because the mean of its divisors is an integer number (40914720).

Almost surely, 2^1355562420 is an apocalyptic number.

1355562420 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 1355562420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1963906560).

1355562420 is an abundant number, since it is smaller than the sum of its proper divisors (2572250700).

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

1355562420 is a wasteful number, since it uses less digits than its factorization.

1355562420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865 (or 1863 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 1355562420 is about 36817.9632788127. The cubic root of 1355562420 is about 1106.7253051540.

The spelling of 1355562420 in words is "one billion, three hundred fifty-five million, five hundred sixty-two thousand, four hundred twenty".