30425400 has 72 divisors (see below), whose sum is σ = 102184680. Its totient is φ = 8112960.

The previous prime is 30425387. The next prime is 30425411. The reversal of 30425400 is 452403.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6652 + ... + 10251.

Almost surely, 2^30425400 is an apocalyptic number.

30425400 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30425400 is an abundant number, since it is smaller than the sum of its proper divisors (71759280).

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

30425400 is a wasteful number, since it uses less digits than its factorization.

30425400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16925 (or 16913 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 30425400 is about 5515.9224069960. The cubic root of 30425400 is about 312.1850480168.

Adding to 30425400 its reverse (452403), we get a palindrome (30877803).

The spelling of 30425400 in words is "thirty million, four hundred twenty-five thousand, four hundred".