30015542040 has 128 divisors (see below), whose sum is σ = 104011153920. Its totient is φ = 6848460800.

The previous prime is 30015542003. The next prime is 30015542047. The reversal of 30015542040 is 4024551003.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 30015542040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30015542047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 646356 + ... + 691235.

It is an arithmetic number, because the mean of its divisors is an integer number (812587140).

Almost surely, 2^30015542040 is an apocalyptic number.

30015542040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30015542040 is an abundant number, since it is smaller than the sum of its proper divisors (73995611880).

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

30015542040 is a wasteful number, since it uses less digits than its factorization.

30015542040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337633 (or 1337629 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The spelling of 30015542040 in words is "thirty billion, fifteen million, five hundred forty-two thousand, forty".