531673780 has 48 divisors (see below), whose sum is σ = 1238690880. Its totient is φ = 190054400.

The previous prime is 531673771. The next prime is 531673787. The reversal of 531673780 is 87376135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531673787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7501 + ... + 33460.

It is an arithmetic number, because the mean of its divisors is an integer number (25806060).

Almost surely, 2^531673780 is an apocalyptic number.

It is an amenable number.

531673780 is an abundant number, since it is smaller than the sum of its proper divisors (707017100).

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

531673780 is a wasteful number, since it uses less digits than its factorization.

531673780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41040 (or 41038 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 531673780 is about 23058.0523895666. The cubic root of 531673780 is about 810.1182472291.

The spelling of 531673780 in words is "five hundred thirty-one million, six hundred seventy-three thousand, seven hundred eighty".