30487380 has 96 divisors (see below), whose sum is σ = 106444800. Its totient is φ = 6334080.

The previous prime is 30487367. The next prime is 30487393. The reversal of 30487380 is 8378403.

It is an interprime number because it is at equal distance from previous prime (30487367) and next prime (30487393).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1321 + ... + 7919.

It is an arithmetic number, because the mean of its divisors is an integer number (1108800).

Almost surely, 2^30487380 is an apocalyptic number.

30487380 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 30487380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53222400).

30487380 is an abundant number, since it is smaller than the sum of its proper divisors (75957420).

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

30487380 is a wasteful number, since it uses less digits than its factorization.

30487380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6629 (or 6627 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 30487380 is about 5521.5378292646. The cubic root of 30487380 is about 312.3968897155.

The spelling of 30487380 in words is "thirty million, four hundred eighty-seven thousand, three hundred eighty".