30747276 has 72 divisors (see below), whose sum is σ = 92135680. Its totient is φ = 8782992.

The previous prime is 30747247. The next prime is 30747281. The reversal of 30747276 is 67274703.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 30747276.

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, 4545 + ... + 9063.

Almost surely, 2^30747276 is an apocalyptic number.

30747276 is a gapful number since it is divisible by the number (36) 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 30747276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46067840).

30747276 is an abundant number, since it is smaller than the sum of its proper divisors (61388404).

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

30747276 is a wasteful number, since it uses less digits than its factorization.

30747276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4545 (or 4531 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 30747276 is about 5545.0226329565. The cubic root of 30747276 is about 313.2820765208.

The spelling of 30747276 in words is "thirty million, seven hundred forty-seven thousand, two hundred seventy-six".