1485431220 has 192 divisors, whose sum is σ = 5148734976. Its totient is φ = 311592960.

The previous prime is 1485431209. The next prime is 1485431221. The reversal of 1485431220 is 221345841.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1485431221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1074930 + ... + 1076310.

It is an arithmetic number, because the mean of its divisors is an integer number (26816328).

Almost surely, 2^1485431220 is an apocalyptic number.

1485431220 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 1485431220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2574367488).

1485431220 is an abundant number, since it is smaller than the sum of its proper divisors (3663303756).

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

1485431220 is a wasteful number, since it uses less digits than its factorization.

1485431220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610 (or 1608 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 1485431220 is about 38541.2924017864. The cubic root of 1485431220 is about 1140.9961591342.

The spelling of 1485431220 in words is "one billion, four hundred eighty-five million, four hundred thirty-one thousand, two hundred twenty".