1600391228 has 6 divisors (see below), whose sum is σ = 2800684656. Its totient is φ = 800195612.

The previous prime is 1600391197. The next prime is 1600391231. The reversal of 1600391228 is 8221930061.

It is a super-2 number, since 2×1600391228² = 5122504165318695968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1600391194 and 1600391203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200048900 + ... + 200048907.

It is an arithmetic number, because the mean of its divisors is an integer number (466780776).

Almost surely, 2^1600391228 is an apocalyptic number.

It is an amenable number.

1600391228 is a deficient number, since it is larger than the sum of its proper divisors (1200293428).

1600391228 is a wasteful number, since it uses less digits than its factorization.

1600391228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400097811 (or 400097809 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1600391228 is about 40004.8900510925. The cubic root of 1600391228 is about 1169.7024173172.

The spelling of 1600391228 in words is "one billion, six hundred million, three hundred ninety-one thousand, two hundred twenty-eight".