1043420837 has 4 divisors (see below), whose sum is σ = 1043542080. Its totient is φ = 1043299596.

The previous prime is 1043420813. The next prime is 1043420839. The reversal of 1043420837 is 7380243401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7380243401 = 2251 ⋅3278651.

It is a cyclic number.

It is not a de Polignac number, because 1043420837 - 2¹² = 1043416741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043420839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46637 + ... + 65282.

It is an arithmetic number, because the mean of its divisors is an integer number (260885520).

Almost surely, 2^1043420837 is an apocalyptic number.

It is an amenable number.

1043420837 is a deficient number, since it is larger than the sum of its proper divisors (121243).

1043420837 is an equidigital number, since it uses as much as digits as its factorization.

1043420837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121242.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 1043420837 is about 32302.0252770627. The cubic root of 1043420837 is about 1014.2690384568.

The spelling of 1043420837 in words is "one billion, forty-three million, four hundred twenty thousand, eight hundred thirty-seven".