1949440577 has 8 divisors (see below), whose sum is σ = 2256134400. Its totient is φ = 1649797344.

The previous prime is 1949440567. The next prime is 1949440607. The reversal of 1949440577 is 7750449491.

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 1949440577 - 2²⁰ = 1948392001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1949440567) 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, 1762052 + ... + 1763157.

It is an arithmetic number, because the mean of its divisors is an integer number (282016800).

Almost surely, 2^1949440577 is an apocalyptic number.

It is an amenable number.

1949440577 is a deficient number, since it is larger than the sum of its proper divisors (306693823).

1949440577 is an equidigital number, since it uses as much as digits as its factorization.

1949440577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3525295.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The square root of 1949440577 is about 44152.4696591255. The cubic root of 1949440577 is about 1249.2134949917.

The spelling of 1949440577 in words is "one billion, nine hundred forty-nine million, four hundred forty thousand, five hundred seventy-seven".