2433381021 has 10 divisors (see below), whose sum is σ = 3635050782. Its totient is φ = 1622253960.

The previous prime is 2433381017. The next prime is 2433381029. The reversal of 2433381021 is 1201833342.

It can be written as a sum of positive squares in only one way, i.e., 1276632900 + 1156748121 = 35730^2 + 34011^2 .

It is not a de Polignac number, because 2433381021 - 2² = 2433381017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2433381029) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 15020790 + ... + 15020951.

Almost surely, 2^2433381021 is an apocalyptic number.

It is an amenable number.

2433381021 is a deficient number, since it is larger than the sum of its proper divisors (1201669761).

2433381021 is an equidigital number, since it uses as much as digits as its factorization.

2433381021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30041753 (or 30041744 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2433381021 is about 49329.3119858771. The cubic root of 2433381021 is about 1345.0446627237.

The spelling of 2433381021 in words is "two billion, four hundred thirty-three million, three hundred eighty-one thousand, twenty-one".