2152507438 has 8 divisors (see below), whose sum is σ = 3229817688. Its totient is φ = 1075901544.

The previous prime is 2152507429. The next prime is 2152507471. The reversal of 2152507438 is 8347052512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2152507397 and 2152507406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168381 + ... + 180712.

It is an arithmetic number, because the mean of its divisors is an integer number (403727211).

Almost surely, 2^2152507438 is an apocalyptic number.

2152507438 is a deficient number, since it is larger than the sum of its proper divisors (1077310250).

2152507438 is a wasteful number, since it uses less digits than its factorization.

2152507438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352178.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 2152507438 is about 46395.1229980049. The cubic root of 2152507438 is about 1291.1644310417.

The spelling of 2152507438 in words is "two billion, one hundred fifty-two million, five hundred seven thousand, four hundred thirty-eight".