1949050637 has 4 divisors (see below), whose sum is σ = 1994377440. Its totient is φ = 1903723836.

The previous prime is 1949050603. The next prime is 1949050643. The reversal of 1949050637 is 7360509491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7360509491 = 4637 ⋅1587343.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1949050637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949053637) 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, 22663337 + ... + 22663422.

It is an arithmetic number, because the mean of its divisors is an integer number (498594360).

Almost surely, 2^1949050637 is an apocalyptic number.

It is an amenable number.

1949050637 is a deficient number, since it is larger than the sum of its proper divisors (45326803).

1949050637 is an equidigital number, since it uses as much as digits as its factorization.

1949050637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45326802.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 1949050637 is about 44148.0536037547. The cubic root of 1949050637 is about 1249.1301974552.

The spelling of 1949050637 in words is "one billion, nine hundred forty-nine million, fifty thousand, six hundred thirty-seven".