1926438149 has 8 divisors (see below), whose sum is σ = 1946048832. Its totient is φ = 1906845120.

The previous prime is 1926438121. The next prime is 1926438161. The reversal of 1926438149 is 9418346291.

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

It is a cyclic number.

It is not a de Polignac number, because 1926438149 - 2¹² = 1926434053 is a prime.

It is a super-2 number, since 2×1926438149² = 7422327883845092402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1926438119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388214 + ... + 393144.

It is an arithmetic number, because the mean of its divisors is an integer number (243256104).

Almost surely, 2^1926438149 is an apocalyptic number.

It is an amenable number.

1926438149 is a deficient number, since it is larger than the sum of its proper divisors (19610683).

1926438149 is a wasteful number, since it uses less digits than its factorization.

1926438149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8827.

The product of its digits is 373248, while the sum is 47.

The square root of 1926438149 is about 43891.2081059522. The cubic root of 1926438149 is about 1244.2806765020.

The spelling of 1926438149 in words is "one billion, nine hundred twenty-six million, four hundred thirty-eight thousand, one hundred forty-nine".