1949611394 has 32 divisors (see below), whose sum is σ = 3125952000. Its totient is φ = 909304704.

The previous prime is 1949611393. The next prime is 1949611397. The reversal of 1949611394 is 4931169491.

It is a super-2 number, since 2×1949611394² = 7601969175229246472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1949611393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 908687 + ... + 910829.

It is an arithmetic number, because the mean of its divisors is an integer number (97686000).

Almost surely, 2^1949611394 is an apocalyptic number.

1949611394 is a deficient number, since it is larger than the sum of its proper divisors (1176340606).

1949611394 is a wasteful number, since it uses less digits than its factorization.

1949611394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2522.

The product of its digits is 209952, while the sum is 47.

The square root of 1949611394 is about 44154.4040159076. The cubic root of 1949611394 is about 1249.2499807870.

The spelling of 1949611394 in words is "one billion, nine hundred forty-nine million, six hundred eleven thousand, three hundred ninety-four".