30402253144 has 64 divisors (see below), whose sum is σ = 60985029600. Its totient is φ = 14158577664.

The previous prime is 30402253117. The next prime is 30402253157. The reversal of 30402253144 is 44135220403.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14552452 + ... + 14554540.

Almost surely, 2^30402253144 is an apocalyptic number.

30402253144 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

30402253144 is an abundant number, since it is smaller than the sum of its proper divisors (30582776456).

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

30402253144 is a wasteful number, since it uses less digits than its factorization.

30402253144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3172 (or 3168 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 30402253144 its reverse (44135220403), we get a palindrome (74537473547).

The spelling of 30402253144 in words is "thirty billion, four hundred two million, two hundred fifty-three thousand, one hundred forty-four".