31402848 has 48 divisors (see below), whose sum is σ = 83580336. Its totient is φ = 10321920.

The previous prime is 31402841. The next prime is 31402867. The reversal of 31402848 is 84820413.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×31402848² = 1972277725022208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31402841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4768 + ... + 9248.

It is an arithmetic number, because the mean of its divisors is an integer number (1741257).

Almost surely, 2^31402848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31402848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41790168).

31402848 is an abundant number, since it is smaller than the sum of its proper divisors (52177488).

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

31402848 is a wasteful number, since it uses less digits than its factorization.

31402848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4567 (or 4559 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 31402848 is about 5603.8244083840. The cubic root of 31402848 is about 315.4929645818.

The spelling of 31402848 in words is "thirty-one million, four hundred two thousand, eight hundred forty-eight".