1949399104 has 21 divisors (see below), whose sum is σ = 3869039887. Its totient is φ = 974522944.

The previous prime is 1949399059. The next prime is 1949399173. The reversal of 1949399104 is 4019939491.

It is a happy number.

The square root of 1949399104 is 44152.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 350457 + ... + 355975.

Almost surely, 2^1949399104 is an apocalyptic number.

1949399104 is the 44152-nd square number.

It is an amenable number.

1949399104 is a deficient number, since it is larger than the sum of its proper divisors (1919640783).

1949399104 is an frugal number, since it uses more digits than its factorization.

1949399104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11050 (or 5521 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 49.

The cubic root of 1949399104 is about 1249.2046362112.

Multiplying 1949399104 by its sum of digits (49), we get a square (95520556096 = 309064²).

The spelling of 1949399104 in words is "one billion, nine hundred forty-nine million, three hundred ninety-nine thousand, one hundred four".