1493815980 has 24 divisors (see below), whose sum is σ = 4182684912. Its totient is φ = 398350912.

The previous prime is 1493815969. The next prime is 1493815991. The reversal of 1493815980 is 895183941.

It is an interprime number because it is at equal distance from previous prime (1493815969) and next prime (1493815991).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12448407 + ... + 12448526.

It is an arithmetic number, because the mean of its divisors is an integer number (174278538).

Almost surely, 2^1493815980 is an apocalyptic number.

1493815980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1493815980 is an abundant number, since it is smaller than the sum of its proper divisors (2688868932).

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

1493815980 is a wasteful number, since it uses less digits than its factorization.

1493815980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24896945 (or 24896943 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 48.

The square root of 1493815980 is about 38649.9156532068. The cubic root of 1493815980 is about 1143.1389789589.

The spelling of 1493815980 in words is "one billion, four hundred ninety-three million, eight hundred fifteen thousand, nine hundred eighty".