1055404042 has 48 divisors (see below), whose sum is σ = 2058073920. Its totient is φ = 401150400.

The previous prime is 1055404027. The next prime is 1055404061. The reversal of 1055404042 is 2404045501.

It is a happy number.

It is a super-2 number, since 2×1055404042² = 2227755383739875528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1055403998 and 1055404016.

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 23 ways as a sum of consecutive naturals, for example, 32259 + ... + 56137.

It is an arithmetic number, because the mean of its divisors is an integer number (42876540).

Almost surely, 2^1055404042 is an apocalyptic number.

1055404042 is a deficient number, since it is larger than the sum of its proper divisors (1002669878).

1055404042 is a wasteful number, since it uses less digits than its factorization.

1055404042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23947 (or 23940 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 1055404042 is about 32486.9826545957. The cubic root of 1055404042 is about 1018.1370718735.

Adding to 1055404042 its reverse (2404045501), we get a palindrome (3459449543).

The spelling of 1055404042 in words is "one billion, fifty-five million, four hundred four thousand, forty-two".