30401340 has 24 divisors (see below), whose sum is σ = 85123920. Its totient is φ = 8107008.

The previous prime is 30401269. The next prime is 30401351. The reversal of 30401340 is 4310403.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253285 + ... + 253404.

It is an arithmetic number, because the mean of its divisors is an integer number (3546830).

Almost surely, 2^30401340 is an apocalyptic number.

30401340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30401340 is an abundant number, since it is smaller than the sum of its proper divisors (54722580).

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

30401340 is a wasteful number, since it uses less digits than its factorization.

30401340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506701 (or 506699 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 30401340 is about 5513.7410167689. The cubic root of 30401340 is about 312.1027357268.

Adding to 30401340 its reverse (4310403), we get a palindrome (34711743).

The spelling of 30401340 in words is "thirty million, four hundred one thousand, three hundred forty".