30767492 has 36 divisors (see below), whose sum is σ = 64805580. Its totient is φ = 12729024.

The previous prime is 30767483. The next prime is 30767509. The reversal of 30767492 is 29476703.

It can be written as a sum of positive squares in 2 ways, for example, as 11195716 + 19571776 = 3346^2 + 4424^2 .

It is a super-3 number, since 3×30767492³ (a number of 23 digits) contains 333 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2978 + ... + 8390.

It is an arithmetic number, because the mean of its divisors is an integer number (1800155).

Almost surely, 2^30767492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30767492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32402790).

30767492 is an abundant number, since it is smaller than the sum of its proper divisors (34038088).

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

30767492 is a wasteful number, since it uses less digits than its factorization.

30767492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5460 (or 5451 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 30767492 is about 5546.8452294976. The cubic root of 30767492 is about 313.3507213327.

The spelling of 30767492 in words is "thirty million, seven hundred sixty-seven thousand, four hundred ninety-two".