531070890 has 64 divisors (see below), whose sum is σ = 1470078720. Its totient is φ = 120268800.

The previous prime is 531070867. The next prime is 531070901. The reversal of 531070890 is 98070135.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11290 + ... + 34490.

It is an arithmetic number, because the mean of its divisors is an integer number (22969980).

Almost surely, 2^531070890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531070890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (735039360).

531070890 is an abundant number, since it is smaller than the sum of its proper divisors (939007830).

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

531070890 is a wasteful number, since it uses less digits than its factorization.

531070890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23327.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 531070890 is about 23044.9753742546. The cubic root of 531070890 is about 809.8119209717.

The spelling of 531070890 in words is "five hundred thirty-one million, seventy thousand, eight hundred ninety".