1892048640 has 72 divisors (see below), whose sum is σ = 6042742608. Its totient is φ = 504545280.

The previous prime is 1892048617. The next prime is 1892048663. The reversal of 1892048640 is 468402981.

It is an interprime number because it is at equal distance from previous prime (1892048617) and next prime (1892048663).

It is a super-2 number, since 2×1892048640² = 7159696112251699200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1892048592 and 1892048601.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242521 + ... + 250200.

Almost surely, 2^1892048640 is an apocalyptic number.

1892048640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1892048640 is an abundant number, since it is smaller than the sum of its proper divisors (4150693968).

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

1892048640 is an equidigital number, since it uses as much as digits as its factorization.

1892048640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492745 (or 492731 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 1892048640 is about 43497.6854556653. The cubic root of 1892048640 is about 1236.8321497935.

The spelling of 1892048640 in words is "one billion, eight hundred ninety-two million, forty-eight thousand, six hundred forty".