30269040 has 80 divisors (see below), whose sum is σ = 97092000. Its totient is φ = 7791616.

The previous prime is 30269023. The next prime is 30269047. The reversal of 30269040 is 4096203.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 30269040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30269047) 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, 4786 + ... + 9134.

It is an arithmetic number, because the mean of its divisors is an integer number (1213650).

Almost surely, 2^30269040 is an apocalyptic number.

30269040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30269040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48546000).

30269040 is an abundant number, since it is smaller than the sum of its proper divisors (66822960).

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

30269040 is a wasteful number, since it uses less digits than its factorization.

30269040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4394 (or 4388 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 30269040 is about 5501.7306368087. The cubic root of 30269040 is about 311.6493430593.

The spelling of 30269040 in words is "thirty million, two hundred sixty-nine thousand, forty".