1602997956 has 108 divisors (see below), whose sum is σ = 4780339200. Its totient is φ = 451513440.

The previous prime is 1602997943. The next prime is 1602997969. The reversal of 1602997956 is 6597992061.

It is an interprime number because it is at equal distance from previous prime (1602997943) and next prime (1602997969).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 118845 + ... + 131643.

It is an arithmetic number, because the mean of its divisors is an integer number (44262400).

Almost surely, 2^1602997956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1602997956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2390169600).

1602997956 is an abundant number, since it is smaller than the sum of its proper divisors (3177341244).

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

1602997956 is a wasteful number, since it uses less digits than its factorization.

1602997956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12894 (or 12882 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 54.

The square root of 1602997956 is about 40037.4569122466. The cubic root of 1602997956 is about 1170.3371458809.

The spelling of 1602997956 in words is "one billion, six hundred two million, nine hundred ninety-seven thousand, nine hundred fifty-six".