1042420423 has 8 divisors (see below), whose sum is σ = 1137548160. Its totient is φ = 947353080.

The previous prime is 1042420411. The next prime is 1042420451. The reversal of 1042420423 is 3240242401.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042420423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1042420394 and 1042420403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042420403) 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, 25836 + ... + 52462.

It is an arithmetic number, because the mean of its divisors is an integer number (142193520).

Almost surely, 2^1042420423 is an apocalyptic number.

1042420423 is a deficient number, since it is larger than the sum of its proper divisors (95127737).

1042420423 is a wasteful number, since it uses less digits than its factorization.

1042420423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30197.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1042420423 is about 32286.5362496506. The cubic root of 1042420423 is about 1013.9447802184.

Adding to 1042420423 its reverse (3240242401), we get a palindrome (4282662824).

The spelling of 1042420423 in words is "one billion, forty-two million, four hundred twenty thousand, four hundred twenty-three".