1011340620 has 192 divisors, whose sum is σ = 3227750400. Its totient is φ = 262828800.

The previous prime is 1011340601. The next prime is 1011340661. The reversal of 1011340620 is 260431101.

It is a happy number.

1011340620 is a `hidden beast` number, since 1 + 0 + 1 + 1 + 3 + 40 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1011340593 and 1011340602.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6441582 + ... + 6441738.

It is an arithmetic number, because the mean of its divisors is an integer number (16811200).

Almost surely, 2^1011340620 is an apocalyptic number.

1011340620 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 1011340620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1613875200).

1011340620 is an abundant number, since it is smaller than the sum of its proper divisors (2216409780).

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

1011340620 is a wasteful number, since it uses less digits than its factorization.

1011340620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1011340620 is about 31801.5820361189. The cubic root of 1011340620 is about 1003.7660060608.

Adding to 1011340620 its reverse (260431101), we get a palindrome (1271771721).

The spelling of 1011340620 in words is "one billion, eleven million, three hundred forty thousand, six hundred twenty".