2001428236 has 12 divisors (see below), whose sum is σ = 3502827328. Its totient is φ = 1000620432.

The previous prime is 2001428227. The next prime is 2001428279. The reversal of 2001428236 is 6328241002.

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, 50725 + ... + 81091.

Almost surely, 2^2001428236 is an apocalyptic number.

It is an amenable number.

2001428236 is a deficient number, since it is larger than the sum of its proper divisors (1501399092).

2001428236 is a wasteful number, since it uses less digits than its factorization.

2001428236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46848 (or 46846 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 2001428236 is about 44737.3248641445. The cubic root of 2001428236 is about 1260.2208892994.

Adding to 2001428236 its reverse (6328241002), we get a palindrome (8329669238).

The spelling of 2001428236 in words is "two billion, one million, four hundred twenty-eight thousand, two hundred thirty-six".