30002040 has 48 divisors (see below), whose sum is σ = 97507800. Its totient is φ = 8000448.

The previous prime is 30002033. The next prime is 30002047. The reversal of 30002040 is 4020003.

It is an interprime number because it is at equal distance from previous prime (30002033) and next prime (30002047).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30002047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41310 + ... + 42029.

Almost surely, 2^30002040 is an apocalyptic number.

30002040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30002040 is an abundant number, since it is smaller than the sum of its proper divisors (67505760).

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

30002040 is a wasteful number, since it uses less digits than its factorization.

30002040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83356 (or 83349 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 30002040 is about 5477.4117975555. The cubic root of 30002040 is about 310.7302934961.

Adding to 30002040 its reverse (4020003), we get a palindrome (34022043).

The spelling of 30002040 in words is "thirty million, two thousand, forty", and thus it is an eban number.