30131340 has 48 divisors (see below), whose sum is σ = 88811520. Its totient is φ = 7611840.

The previous prime is 30131333. The next prime is 30131363. The reversal of 30131340 is 4313103.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12076 + ... + 14355.

It is an arithmetic number, because the mean of its divisors is an integer number (1850240).

Almost surely, 2^30131340 is an apocalyptic number.

30131340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30131340 is an abundant number, since it is smaller than the sum of its proper divisors (58680180).

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

30131340 is a wasteful number, since it uses less digits than its factorization.

30131340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26462 (or 26460 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 30131340 is about 5489.2021278142. The cubic root of 30131340 is about 311.1760392643.

Adding to 30131340 its reverse (4313103), we get a palindrome (34444443).

The spelling of 30131340 in words is "thirty million, one hundred thirty-one thousand, three hundred forty".