1620034044 has 24 divisors (see below), whose sum is σ = 3783975888. Its totient is φ = 539454720.

The previous prime is 1620034027. The next prime is 1620034061. The reversal of 1620034044 is 4404300261.

It is an interprime number because it is at equal distance from previous prime (1620034027) and next prime (1620034061).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57367 + ... + 80814.

It is an arithmetic number, because the mean of its divisors is an integer number (157665662).

Almost surely, 2^1620034044 is an apocalyptic number.

It is an amenable number.

1620034044 is an abundant number, since it is smaller than the sum of its proper divisors (2163941844).

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

1620034044 is a wasteful number, since it uses less digits than its factorization.

1620034044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139165 (or 139163 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1620034044 is about 40249.6465077645. The cubic root of 1620034044 is about 1174.4685193149.

The spelling of 1620034044 in words is "one billion, six hundred twenty million, thirty-four thousand, forty-four".