1949740005 has 32 divisors (see below), whose sum is σ = 3292755840. Its totient is φ = 982437120.

The previous prime is 1949740003. The next prime is 1949740021. The reversal of 1949740005 is 5000479491.

1949740005 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1949740005 - 2¹ = 1949740003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949740003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97135 + ... + 115475.

It is an arithmetic number, because the mean of its divisors is an integer number (102898620).

Almost surely, 2^1949740005 is an apocalyptic number.

1949740005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1949740005 is a deficient number, since it is larger than the sum of its proper divisors (1343015835).

1949740005 is a wasteful number, since it uses less digits than its factorization.

1949740005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18741.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 1949740005 is about 44155.8603698309. The cubic root of 1949740005 is about 1249.2774501512.

The spelling of 1949740005 in words is "one billion, nine hundred forty-nine million, seven hundred forty thousand, five".