1066432040 has 32 divisors (see below), whose sum is σ = 2407315680. Its totient is φ = 425178432.

The previous prime is 1066431979. The next prime is 1066432043. The reversal of 1066432040 is 402346601.

1066432040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1066432040² = 2274554591877123200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066432043) 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, 31142 + ... + 55701.

It is an arithmetic number, because the mean of its divisors is an integer number (75228615).

Almost surely, 2^1066432040 is an apocalyptic number.

1066432040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1066432040 is an abundant number, since it is smaller than the sum of its proper divisors (1340883640).

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

1066432040 is a wasteful number, since it uses less digits than its factorization.

1066432040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87161 (or 87157 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1066432040 is about 32656.2710669789. The cubic root of 1066432040 is about 1021.6709891030.

Adding to 1066432040 its reverse (402346601), we get a palindrome (1468778641).

The spelling of 1066432040 in words is "one billion, sixty-six million, four hundred thirty-two thousand, forty".