8001402028 has 12 divisors (see below), whose sum is σ = 14088359320. Its totient is φ = 3976156512.

The previous prime is 8001402011. The next prime is 8001402049. The reversal of 8001402028 is 8202041008.

It is a junction number, because it is equal to n+sod(n) for n = 8001401993 and 8001402011.

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, 6135393 + ... + 6136696.

Almost surely, 2^8001402028 is an apocalyptic number.

It is an amenable number.

8001402028 is a deficient number, since it is larger than the sum of its proper divisors (6086957292).

8001402028 is a wasteful number, since it uses less digits than its factorization.

8001402028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12272256 (or 12272254 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 8001402028 is about 89450.5563314170. The cubic root of 8001402028 is about 2000.1168288420.

The spelling of 8001402028 in words is "eight billion, one million, four hundred two thousand, twenty-eight".