31055466 has 48 divisors (see below), whose sum is σ = 68638752. Its totient is φ = 9311040.

The previous prime is 31055449. The next prime is 31055467. The reversal of 31055466 is 66455013.

It is not an unprimeable number, because it can be changed into a prime (31055467) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 290185 + ... + 290291.

It is an arithmetic number, because the mean of its divisors is an integer number (1429974).

Almost surely, 2^31055466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31055466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34319376).

31055466 is an abundant number, since it is smaller than the sum of its proper divisors (37583286).

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

31055466 is a wasteful number, since it uses less digits than its factorization.

31055466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 31055466 is about 5572.7431306314. The cubic root of 31055466 is about 314.3253082545.

The spelling of 31055466 in words is "thirty-one million, fifty-five thousand, four hundred sixty-six".