30726480 has 120 divisors (see below), whose sum is σ = 101413152. Its totient is φ = 7694336.

The previous prime is 30726469. The next prime is 30726491. The reversal of 30726480 is 8462703.

It is an interprime number because it is at equal distance from previous prime (30726469) and next prime (30726491).

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69139 + ... + 69581.

Almost surely, 2^30726480 is an apocalyptic number.

30726480 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 30726480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50706576).

30726480 is an abundant number, since it is smaller than the sum of its proper divisors (70686672).

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

30726480 is a wasteful number, since it uses less digits than its factorization.

30726480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 30726480 is about 5543.1471205444. The cubic root of 30726480 is about 313.2114308758.

The spelling of 30726480 in words is "thirty million, seven hundred twenty-six thousand, four hundred eighty".