1920498930 has 64 divisors (see below), whose sum is σ = 5852954880. Its totient is φ = 438970752.

The previous prime is 1920498901. The next prime is 1920498947. The reversal of 1920498930 is 398940291.

It is a super-2 number, since 2×1920498930² = 7376632280262289800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 506179 + ... + 509958.

It is an arithmetic number, because the mean of its divisors is an integer number (91452420).

Almost surely, 2^1920498930 is an apocalyptic number.

1920498930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1920498930 is an abundant number, since it is smaller than the sum of its proper divisors (3932455950).

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

1920498930 is a wasteful number, since it uses less digits than its factorization.

1920498930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016160 (or 1016154 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 1920498930 is about 43823.4974642600. The cubic root of 1920498930 is about 1243.0006521904. Note that the first 3 decimals are identical.

The spelling of 1920498930 in words is "one billion, nine hundred twenty million, four hundred ninety-eight thousand, nine hundred thirty".