1471020820 has 12 divisors (see below), whose sum is σ = 3089143764. Its totient is φ = 588408320.

The previous prime is 1471020757. The next prime is 1471020823. The reversal of 1471020820 is 280201741.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 701402256 + 769618564 = 26484^2 + 27742^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1471020823) 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, 36775501 + ... + 36775540.

It is an arithmetic number, because the mean of its divisors is an integer number (257428647).

Almost surely, 2^1471020820 is an apocalyptic number.

1471020820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1471020820 is an abundant number, since it is smaller than the sum of its proper divisors (1618122944).

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

1471020820 is a wasteful number, since it uses less digits than its factorization.

1471020820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73551050 (or 73551048 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 1471020820 is about 38353.8892421616. The cubic root of 1471020820 is about 1137.2945025065.

The spelling of 1471020820 in words is "one billion, four hundred seventy-one million, twenty thousand, eight hundred twenty".