1916747740 has 24 divisors (see below), whose sum is σ = 4237022160. Its totient is φ = 726346368.

The previous prime is 1916747713. The next prime is 1916747743. The reversal of 1916747740 is 477476191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1916747743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2521657 + ... + 2522416.

It is an arithmetic number, because the mean of its divisors is an integer number (176542590).

Almost surely, 2^1916747740 is an apocalyptic number.

1916747740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1916747740 is an abundant number, since it is smaller than the sum of its proper divisors (2320274420).

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

1916747740 is a wasteful number, since it uses less digits than its factorization.

1916747740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5044101 (or 5044099 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 46.

The square root of 1916747740 is about 43780.6777014701. The cubic root of 1916747740 is about 1242.1908329903.

The spelling of 1916747740 in words is "one billion, nine hundred sixteen million, seven hundred forty-seven thousand, seven hundred forty".