9001020046 has 4 divisors (see below), whose sum is σ = 13501530072. Its totient is φ = 4500510022.

The previous prime is 9001020013. The next prime is 9001020053. The reversal of 9001020046 is 6400201009.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6400201009 = 37139 ⋅172331.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 9001019999 and 9001020026.

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, 2250255010 + ... + 2250255013.

It is an arithmetic number, because the mean of its divisors is an integer number (3375382518).

Almost surely, 2^9001020046 is an apocalyptic number.

9001020046 is a deficient number, since it is larger than the sum of its proper divisors (4500510026).

9001020046 is a wasteful number, since it uses less digits than its factorization.

9001020046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4500510025.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 9001020046 is about 94873.7057671935. The cubic root of 9001020046 is about 2080.1624045715.

The spelling of 9001020046 in words is "nine billion, one million, twenty thousand, forty-six".