31074120 has 384 divisors, whose sum is σ = 134784000. Its totient is φ = 6013440.

The previous prime is 31074119. The next prime is 31074149. The reversal of 31074120 is 2147013.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 31074093 and 31074102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 526651 + ... + 526709.

It is an arithmetic number, because the mean of its divisors is an integer number (351000).

Almost surely, 2^31074120 is an apocalyptic number.

31074120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31074120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67392000).

31074120 is an abundant number, since it is smaller than the sum of its proper divisors (103709880).

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

31074120 is a wasteful number, since it uses less digits than its factorization.

31074120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 31074120 is about 5574.4165613990. The cubic root of 31074120 is about 314.3882306260.

It can be divided in two parts, 3107 and 4120, that added together give a palindrome (7227).

The spelling of 31074120 in words is "thirty-one million, seventy-four thousand, one hundred twenty".