1949172076 has 48 divisors (see below), whose sum is σ = 3753792000. Its totient is φ = 881476992.

The previous prime is 1949172067. The next prime is 1949172161. The reversal of 1949172076 is 6702719491.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1833121 + ... + 1834183.

It is an arithmetic number, because the mean of its divisors is an integer number (78204000).

Almost surely, 2^1949172076 is an apocalyptic number.

It is an amenable number.

1949172076 is a deficient number, since it is larger than the sum of its proper divisors (1804619924).

1949172076 is a wasteful number, since it uses less digits than its factorization.

1949172076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158 (or 2156 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 1949172076 is about 44149.4289430792. The cubic root of 1949172076 is about 1249.1561399951.

The spelling of 1949172076 in words is "one billion, nine hundred forty-nine million, one hundred seventy-two thousand, seventy-six".