2140433451 has 16 divisors (see below), whose sum is σ = 3414937120. Its totient is φ = 1317189600.

The previous prime is 2140433443. The next prime is 2140433483. The reversal of 2140433451 is 1543340412.

It is a happy number.

It is not a de Polignac number, because 2140433451 - 2³ = 2140433443 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2140433401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3048700 + ... + 3049401.

It is an arithmetic number, because the mean of its divisors is an integer number (213433570).

Almost surely, 2^2140433451 is an apocalyptic number.

2140433451 is a deficient number, since it is larger than the sum of its proper divisors (1274503669).

2140433451 is a wasteful number, since it uses less digits than its factorization.

2140433451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6098123 (or 6098117 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2140433451 is about 46264.8187178984. The cubic root of 2140433451 is about 1288.7457414070.

Adding to 2140433451 its reverse (1543340412), we get a palindrome (3683773863).

The spelling of 2140433451 in words is "two billion, one hundred forty million, four hundred thirty-three thousand, four hundred fifty-one".