31490060 has 24 divisors (see below), whose sum is σ = 75576480. Its totient is φ = 10796544.

The previous prime is 31490057. The next prime is 31490077. The reversal of 31490060 is 6009413.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112325 + ... + 112604.

It is an arithmetic number, because the mean of its divisors is an integer number (3149020).

Almost surely, 2^31490060 is an apocalyptic number.

It is an amenable number.

31490060 is an abundant number, since it is smaller than the sum of its proper divisors (44086420).

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

31490060 is a wasteful number, since it uses less digits than its factorization.

31490060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224945 (or 224943 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 31490060 is about 5611.6004847102. The cubic root of 31490060 is about 315.7847570153.

Adding to 31490060 its reverse (6009413), we get a palindrome (37499473).

The spelling of 31490060 in words is "thirty-one million, four hundred ninety thousand, sixty".