30087380 has 24 divisors (see below), whose sum is σ = 63747432. Its totient is φ = 11927552.

The previous prime is 30087377. The next prime is 30087389. The reversal of 30087380 is 8378003.

It can be written as a sum of positive squares in 4 ways, for example, as 188356 + 29899024 = 434^2 + 5468^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30087389) 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, 4397 + ... + 8916.

It is an arithmetic number, because the mean of its divisors is an integer number (2656143).

Almost surely, 2^30087380 is an apocalyptic number.

It is an amenable number.

30087380 is an abundant number, since it is smaller than the sum of its proper divisors (33660052).

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

30087380 is a wasteful number, since it uses less digits than its factorization.

30087380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13435 (or 13433 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 30087380 is about 5485.1964413319. The cubic root of 30087380 is about 311.0246359244.

The spelling of 30087380 in words is "thirty million, eighty-seven thousand, three hundred eighty".