1626120042 has 16 divisors (see below), whose sum is σ = 3293408640. Its totient is φ = 535178592.

The previous prime is 1626120011. The next prime is 1626120043. The reversal of 1626120042 is 2400216261.

It is a junction number, because it is equal to n+sod(n) for n = 1626119994 and 1626120021.

It is not an unprimeable number, because it can be changed into a prime (1626120043) 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 in 7 ways as a sum of consecutive naturals, for example, 1714843 + ... + 1715790.

It is an arithmetic number, because the mean of its divisors is an integer number (205838040).

Almost surely, 2^1626120042 is an apocalyptic number.

1626120042 is an abundant number, since it is smaller than the sum of its proper divisors (1667288598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1626120042 is a wasteful number, since it uses less digits than its factorization.

1626120042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3430717.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1626120042 is about 40325.1787596782. The cubic root of 1626120042 is about 1175.9373939900.

The spelling of 1626120042 in words is "one billion, six hundred twenty-six million, one hundred twenty thousand, forty-two".