1920939463 has 8 divisors (see below), whose sum is σ = 2140985520. Its totient is φ = 1712787840.

The previous prime is 1920939457. The next prime is 1920939469. The reversal of 1920939463 is 3649390291.

It is an interprime number because it is at equal distance from previous prime (1920939457) and next prime (1920939469).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1920939463 - 2⁹ = 1920938951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1920939469) 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, 2973268 + ... + 2973913.

It is an arithmetic number, because the mean of its divisors is an integer number (267623190).

Almost surely, 2^1920939463 is an apocalyptic number.

1920939463 is a deficient number, since it is larger than the sum of its proper divisors (220046057).

1920939463 is a wasteful number, since it uses less digits than its factorization.

1920939463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5947217.

The product of its (nonzero) digits is 314928, while the sum is 46.

The square root of 1920939463 is about 43828.5233951590. The cubic root of 1920939463 is about 1243.0956866862.

The spelling of 1920939463 in words is "one billion, nine hundred twenty million, nine hundred thirty-nine thousand, four hundred sixty-three".