1069215420 has 192 divisors, whose sum is σ = 3804143616. Its totient is φ = 218280960.

The previous prime is 1069215419. The next prime is 1069215431. The reversal of 1069215420 is 245129601.

It is a super-2 number, since 2×1069215420² = 2286443228731552800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 166102 + ... + 172418.

It is an arithmetic number, because the mean of its divisors is an integer number (19813248).

Almost surely, 2^1069215420 is an apocalyptic number.

1069215420 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 1069215420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1902071808).

1069215420 is an abundant number, since it is smaller than the sum of its proper divisors (2734928196).

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

1069215420 is a wasteful number, since it uses less digits than its factorization.

1069215420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6380 (or 6378 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1069215420 is about 32698.8596131425. The cubic root of 1069215420 is about 1022.5590682495.

The spelling of 1069215420 in words is "one billion, sixty-nine million, two hundred fifteen thousand, four hundred twenty".