1043427646 has 4 divisors (see below), whose sum is σ = 1565141472. Its totient is φ = 521713822.

The previous prime is 1043427643. The next prime is 1043427653. The reversal of 1043427646 is 6467243401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6467243401 = 433 ⋅14935897.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043427641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260856910 + ... + 260856913.

It is an arithmetic number, because the mean of its divisors is an integer number (391285368).

Almost surely, 2^1043427646 is an apocalyptic number.

1043427646 is a deficient number, since it is larger than the sum of its proper divisors (521713826).

1043427646 is an equidigital number, since it uses as much as digits as its factorization.

1043427646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521713825.

The product of its (nonzero) digits is 96768, while the sum is 37.

The square root of 1043427646 is about 32302.1306727590. The cubic root of 1043427646 is about 1014.2712447072.

The spelling of 1043427646 in words is "one billion, forty-three million, four hundred twenty-seven thousand, six hundred forty-six".