30490770 has 16 divisors (see below), whose sum is σ = 73177920. Its totient is φ = 8130864.

The previous prime is 30490769. The next prime is 30490771. The reversal of 30490770 is 7709403.

It is an interprime number because it is at equal distance from previous prime (30490769) and next prime (30490771).

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1016359 = 30490770 / (3 + 0 + 4 + 9 + 0 + 7 + 7 + 0).

It is not an unprimeable number, because it can be changed into a prime (30490771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508150 + ... + 508209.

It is an arithmetic number, because the mean of its divisors is an integer number (4573620).

Almost surely, 2^30490770 is an apocalyptic number.

30490770 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30490770 is an abundant number, since it is smaller than the sum of its proper divisors (42687150).

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

30490770 is a wasteful number, since it uses less digits than its factorization.

30490770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016369.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 30490770 is about 5521.8448004268. The cubic root of 30490770 is about 312.4084681261.

The spelling of 30490770 in words is "thirty million, four hundred ninety thousand, seven hundred seventy".