1066130420 has 24 divisors (see below), whose sum is σ = 2240960904. Its totient is φ = 426054656.

The previous prime is 1066130419. The next prime is 1066130423. The reversal of 1066130420 is 240316601.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 73376356 + 992754064 = 8566^2 + 31508^2 .

It is a super-2 number, since 2×1066130420² = 2273268144898752800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066130423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2357 + ... + 46236.

It is an arithmetic number, because the mean of its divisors is an integer number (93373371).

Almost surely, 2^1066130420 is an apocalyptic number.

1066130420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1066130420 is an abundant number, since it is smaller than the sum of its proper divisors (1174830484).

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

1066130420 is a wasteful number, since it uses less digits than its factorization.

1066130420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49699 (or 49697 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1066130420 is about 32651.6526381131. The cubic root of 1066130420 is about 1021.5746599578.

The spelling of 1066130420 in words is "one billion, sixty-six million, one hundred thirty thousand, four hundred twenty".