1602220646 has 16 divisors (see below), whose sum is σ = 2620968000. Its totient is φ = 730124928.

The previous prime is 1602220621. The next prime is 1602220649. The reversal of 1602220646 is 6460222061.

It is a super-2 number, since 2×1602220646² = 5134221996937314632, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1602220649) 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, 387971 + ... + 392078.

It is an arithmetic number, because the mean of its divisors is an integer number (163810500).

Almost surely, 2^1602220646 is an apocalyptic number.

1602220646 is a deficient number, since it is larger than the sum of its proper divisors (1018747354).

1602220646 is a wasteful number, since it uses less digits than its factorization.

1602220646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780143.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 1602220646 is about 40027.7484502938. The cubic root of 1602220646 is about 1170.1479458373.

The spelling of 1602220646 in words is "one billion, six hundred two million, two hundred twenty thousand, six hundred forty-six".