1949193740 has 24 divisors (see below), whose sum is σ = 4408177200. Its totient is φ = 719702208.

The previous prime is 1949193737. The next prime is 1949193761. The reversal of 1949193740 is 473919491.

It is a super-3 number, since 3×1949193740³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3748190 + ... + 3748709.

It is an arithmetic number, because the mean of its divisors is an integer number (183674050).

Almost surely, 2^1949193740 is an apocalyptic number.

1949193740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1949193740 is an abundant number, since it is smaller than the sum of its proper divisors (2458983460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1949193740 is a wasteful number, since it uses less digits than its factorization.

1949193740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7496921 (or 7496919 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 1949193740 is about 44149.6742909843. The cubic root of 1949193740 is about 1249.1607678777.

The spelling of 1949193740 in words is "one billion, nine hundred forty-nine million, one hundred ninety-three thousand, seven hundred forty".