30140409 has 16 divisors (see below), whose sum is σ = 43509312. Its totient is φ = 18449088.

The previous prime is 30140399. The next prime is 30140413. The reversal of 30140409 is 90404103.

It is not a de Polignac number, because 30140409 - 2¹² = 30136313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30140449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5722 + ... + 9644.

It is an arithmetic number, because the mean of its divisors is an integer number (2719332).

Almost surely, 2^30140409 is an apocalyptic number.

30140409 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

30140409 is a deficient number, since it is larger than the sum of its proper divisors (13368903).

30140409 is a wasteful number, since it uses less digits than its factorization.

30140409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4136.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 30140409 is about 5490.0281420044. The cubic root of 30140409 is about 311.2072556259.

The spelling of 30140409 in words is "thirty million, one hundred forty thousand, four hundred nine".