1623350042 has 4 divisors (see below), whose sum is σ = 2435025066. Its totient is φ = 811675020.

The previous prime is 1623350041. The next prime is 1623350059. The reversal of 1623350042 is 2400533261.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1510799161 + 112550881 = 38869^2 + 10609^2 .

It is a super-2 number, since 2×1623350042² = 5270530717722803528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1623349993 and 1623350020.

It is not an unprimeable number, because it can be changed into a prime (1623350041) by changing a digit.

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 as a sum of consecutive naturals, namely, 405837509 + ... + 405837512.

Almost surely, 2^1623350042 is an apocalyptic number.

1623350042 is a deficient number, since it is larger than the sum of its proper divisors (811675024).

1623350042 is an equidigital number, since it uses as much as digits as its factorization.

1623350042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811675023.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 1623350042 is about 40290.8183337097. The cubic root of 1623350042 is about 1175.2693010621.

The spelling of 1623350042 in words is "one billion, six hundred twenty-three million, three hundred fifty thousand, forty-two".