30001400440 has 64 divisors (see below), whose sum is σ = 74328140160. Its totient is φ = 10807624320.

The previous prime is 30001400419. The next prime is 30001400461. The reversal of 30001400440 is 4400410003.

It is an interprime number because it is at equal distance from previous prime (30001400419) and next prime (30001400461).

It is a super-2 number, since 2×30001400440² (a number of 22 digits) contains 22 as substring.

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, 271542 + ... + 365701.

It is an arithmetic number, because the mean of its divisors is an integer number (1161377190).

Almost surely, 2^30001400440 is an apocalyptic number.

It is an amenable number.

30001400440 is an abundant number, since it is smaller than the sum of its proper divisors (44326739720).

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

30001400440 is a wasteful number, since it uses less digits than its factorization.

30001400440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637372 (or 637368 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 30001400440 its reverse (4400410003), we get a palindrome (34401810443).

The spelling of 30001400440 in words is "thirty billion, one million, four hundred thousand, four hundred forty".