30400462540 has 48 divisors (see below), whose sum is σ = 73089080064. Its totient is φ = 10404734400.

The previous prime is 30400462501. The next prime is 30400462553. The reversal of 30400462540 is 4526400403.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 30400462499 and 30400462508.

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, 110206 + ... + 270085.

It is an arithmetic number, because the mean of its divisors is an integer number (1522689168).

Almost surely, 2^30400462540 is an apocalyptic number.

It is an amenable number.

30400462540 is an abundant number, since it is smaller than the sum of its proper divisors (42688617524).

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

30400462540 is a wasteful number, since it uses less digits than its factorization.

30400462540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380878 (or 380876 counting only the distinct ones).

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

Adding to 30400462540 its reverse (4526400403), we get a palindrome (34926862943).

The spelling of 30400462540 in words is "thirty billion, four hundred million, four hundred sixty-two thousand, five hundred forty".