1601972 has 12 divisors (see below), whose sum is σ = 2812320. Its totient is φ = 798456.

The previous prime is 1601969. The next prime is 1602011. The reversal of 1601972 is 2791061.

It is a super-3 number, since 3×1601972³ = 12333490901495646144, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2153 + ... + 2799.

It is an arithmetic number, because the mean of its divisors is an integer number (234360).

2^1601972 is an apocalyptic number.

It is an amenable number.

1601972 is a deficient number, since it is larger than the sum of its proper divisors (1210348).

1601972 is a wasteful number, since it uses less digits than its factorization.

1601972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270 (or 1268 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 1601972 is about 1265.6903254746. The cubic root of 1601972 is about 117.0087411591.

The spelling of 1601972 in words is "one million, six hundred one thousand, nine hundred seventy-two".