30496040 has 16 divisors (see below), whose sum is σ = 68616180. Its totient is φ = 12198400.

The previous prime is 30496031. The next prime is 30496049. The reversal of 30496040 is 4069403.

It is an interprime number because it is at equal distance from previous prime (30496031) and next prime (30496049).

It can be written as a sum of positive squares in 2 ways, for example, as 29833444 + 662596 = 5462^2 + 814^2 .

It is not an unprimeable number, because it can be changed into a prime (30496049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381161 + ... + 381240.

Almost surely, 2^30496040 is an apocalyptic number.

It is an amenable number.

30496040 is an abundant number, since it is smaller than the sum of its proper divisors (38120140).

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

30496040 is a wasteful number, since it uses less digits than its factorization.

30496040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762412 (or 762408 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 30496040 is about 5522.3219754013. The cubic root of 30496040 is about 312.4264658981.

The spelling of 30496040 in words is "thirty million, four hundred ninety-six thousand, forty".