1620448094 has 16 divisors (see below), whose sum is σ = 2447843328. Its totient is φ = 804511032.

The previous prime is 1620448073. The next prime is 1620448099. The reversal of 1620448094 is 4908440261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1620448099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406499 + ... + 410465.

It is an arithmetic number, because the mean of its divisors is an integer number (152990208).

Almost surely, 2^1620448094 is an apocalyptic number.

1620448094 is a deficient number, since it is larger than the sum of its proper divisors (827395234).

1620448094 is a wasteful number, since it uses less digits than its factorization.

1620448094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5359.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 1620448094 is about 40254.7897025932. The cubic root of 1620448094 is about 1174.5685680905.

The spelling of 1620448094 in words is "one billion, six hundred twenty million, four hundred forty-eight thousand, ninety-four".