2142624464 has 20 divisors (see below), whose sum is σ = 4194135204. Its totient is φ = 1060267008.

The previous prime is 2142624383. The next prime is 2142624467. The reversal of 2142624464 is 4644262412.

It can be written as a sum of positive squares in 2 ways, for example, as 1444608064 + 698016400 = 38008^2 + 26420^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142624467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 688727 + ... + 691830.

Almost surely, 2^2142624464 is an apocalyptic number.

It is an amenable number.

2142624464 is a deficient number, since it is larger than the sum of its proper divisors (2051510740).

2142624464 is a wasteful number, since it uses less digits than its factorization.

2142624464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380662 (or 1380656 counting only the distinct ones).

The product of its digits is 73728, while the sum is 35.

The square root of 2142624464 is about 46288.4917015018. The cubic root of 2142624464 is about 1289.1853246073.

Adding to 2142624464 its reverse (4644262412), we get a palindrome (6786886876).

The spelling of 2142624464 in words is "two billion, one hundred forty-two million, six hundred twenty-four thousand, four hundred sixty-four".