1471249920 has 160 divisors (see below), whose sum is σ = 5375513088. Its totient is φ = 336273408.

The previous prime is 1471249919. The next prime is 1471249951. The reversal of 1471249920 is 299421741.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40077 + ... + 67443.

Almost surely, 2^1471249920 is an apocalyptic number.

1471249920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1471249920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2687756544).

1471249920 is an abundant number, since it is smaller than the sum of its proper divisors (3904263168).

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

1471249920 is an equidigital number, since it uses as much as digits as its factorization.

1471249920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27400 (or 27384 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 1471249920 is about 38356.8757851835. The cubic root of 1471249920 is about 1137.3535410195.

The spelling of 1471249920 in words is "one billion, four hundred seventy-one million, two hundred forty-nine thousand, nine hundred twenty".