30141040 has 40 divisors (see below), whose sum is σ = 73129248. Its totient is φ = 11531520.

The previous prime is 30141019. The next prime is 30141071. The reversal of 30141040 is 4014103.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×30141040³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30141040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6351 + ... + 10030.

Almost surely, 2^30141040 is an apocalyptic number.

It is an amenable number.

30141040 is an abundant number, since it is smaller than the sum of its proper divisors (42988208).

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

30141040 is a wasteful number, since it uses less digits than its factorization.

30141040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16417 (or 16411 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 30141040 is about 5490.0856095329. The cubic root of 30141040 is about 311.2094273550.

Adding to 30141040 its reverse (4014103), we get a palindrome (34155143).

The spelling of 30141040 in words is "thirty million, one hundred forty-one thousand, forty".