1623340834 has 4 divisors (see below), whose sum is σ = 2435011254. Its totient is φ = 811670416.

The previous prime is 1623340813. The next prime is 1623340841. The reversal of 1623340834 is 4380433261.

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., 1486333809 + 137007025 = 38553^2 + 11705^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1623340834.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405835207 + ... + 405835210.

Almost surely, 2^1623340834 is an apocalyptic number.

1623340834 is a deficient number, since it is larger than the sum of its proper divisors (811670420).

1623340834 is an equidigital number, since it uses as much as digits as its factorization.

1623340834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811670419.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 1623340834 is about 40290.7040643372. The cubic root of 1623340834 is about 1175.2670789289.

The spelling of 1623340834 in words is "one billion, six hundred twenty-three million, three hundred forty thousand, eight hundred thirty-four".