1042422405 has 16 divisors (see below), whose sum is σ = 1765986624. Its totient is φ = 523255040.

The previous prime is 1042422389. The next prime is 1042422421. The reversal of 1042422405 is 5042242401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1042422389) and next prime (1042422421).

It is not a de Polignac number, because 1042422405 - 2⁴ = 1042422389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2043711 + ... + 2044220.

It is an arithmetic number, because the mean of its divisors is an integer number (110374164).

Almost surely, 2^1042422405 is an apocalyptic number.

1042422405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1042422405 is a deficient number, since it is larger than the sum of its proper divisors (723564219).

1042422405 is a wasteful number, since it uses less digits than its factorization.

1042422405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4087956.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 1042422405 is about 32286.5669435448. The cubic root of 1042422405 is about 1013.9454228374.

Adding to 1042422405 its reverse (5042242401), we get a palindrome (6084664806).

The spelling of 1042422405 in words is "one billion, forty-two million, four hundred twenty-two thousand, four hundred five".