1341647820 has 144 divisors (see below), whose sum is σ = 4434504480. Its totient is φ = 336688128.

The previous prime is 1341647819. The next prime is 1341647833. The reversal of 1341647820 is 287461431.

1341647820 is a `hidden beast` number, since 1 + 3 + 4 + 1 + 647 + 8 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 151762 + ... + 160358.

It is an arithmetic number, because the mean of its divisors is an integer number (30795170).

Almost surely, 2^1341647820 is an apocalyptic number.

1341647820 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 1341647820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2217252240).

1341647820 is an abundant number, since it is smaller than the sum of its proper divisors (3092856660).

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

1341647820 is a wasteful number, since it uses less digits than its factorization.

1341647820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8649 (or 8624 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 1341647820 is about 36628.5110262484. The cubic root of 1341647820 is about 1102.9254963681.

The spelling of 1341647820 in words is "one billion, three hundred forty-one million, six hundred forty-seven thousand, eight hundred twenty".