1500481890 has 72 divisors (see below), whose sum is σ = 3930269148. Its totient is φ = 397172160.

The previous prime is 1500481877. The next prime is 1500481891. The reversal of 1500481890 is 981840051.

It can be written as a sum of positive squares in 2 ways, for example, as 1240659729 + 259822161 = 35223^2 + 16119^2 .

It is a super-3 number, since 3×1500481890³ (a number of 29 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1500481891) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3563880 + ... + 3564300.

Almost surely, 2^1500481890 is an apocalyptic number.

1500481890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1500481890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1965134574).

1500481890 is an abundant number, since it is smaller than the sum of its proper divisors (2429787258).

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

1500481890 is a wasteful number, since it uses less digits than its factorization.

1500481890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 1500481890 is about 38736.0541356499. The cubic root of 1500481890 is about 1144.8368130611.

The spelling of 1500481890 in words is "one billion, five hundred million, four hundred eighty-one thousand, eight hundred ninety".