1481979790 has 8 divisors (see below), whose sum is σ = 2667563640. Its totient is φ = 592791912.

The previous prime is 1481979787. The next prime is 1481979791. The reversal of 1481979790 is 979791841.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1481979791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74098980 + ... + 74098999.

It is an arithmetic number, because the mean of its divisors is an integer number (333445455).

Almost surely, 2^1481979790 is an apocalyptic number.

1481979790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1481979790 is a deficient number, since it is larger than the sum of its proper divisors (1185583850).

1481979790 is a wasteful number, since it uses less digits than its factorization.

1481979790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148197986.

The product of its (nonzero) digits is 1143072, while the sum is 55.

The square root of 1481979790 is about 38496.4906192759. The cubic root of 1481979790 is about 1140.1117644604. Note that the first 3 decimals are identical.

The spelling of 1481979790 in words is "one billion, four hundred eighty-one million, nine hundred seventy-nine thousand, seven hundred ninety".