1916346940 has 48 divisors (see below), whose sum is σ = 4056522624. Its totient is φ = 760435200.

The previous prime is 1916346937. The next prime is 1916346983. The reversal of 1916346940 is 496436191.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1556125 + ... + 1557355.

It is an arithmetic number, because the mean of its divisors is an integer number (84510888).

Almost surely, 2^1916346940 is an apocalyptic number.

1916346940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1916346940 is an abundant number, since it is smaller than the sum of its proper divisors (2140175684).

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

1916346940 is a wasteful number, since it uses less digits than its factorization.

1916346940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798 (or 1796 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 1916346940 is about 43776.1001003972. The cubic root of 1916346940 is about 1242.1042445151.

The spelling of 1916346940 in words is "one billion, nine hundred sixteen million, three hundred forty-six thousand, nine hundred forty".