30449769 has 24 divisors (see below), whose sum is σ = 48522432. Its totient is φ = 16637280.

The previous prime is 30449759. The next prime is 30449773. The reversal of 30449769 is 96794403.

It is not a de Polignac number, because 30449769 - 2¹⁷ = 30318697 is a prime.

It is a super-2 number, since 2×30449769² = 1854376864306722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30449769.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30449729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9739 + ... + 12479.

It is an arithmetic number, because the mean of its divisors is an integer number (2021768).

Almost surely, 2^30449769 is an apocalyptic number.

It is an amenable number.

30449769 is a deficient number, since it is larger than the sum of its proper divisors (18072663).

30449769 is a wasteful number, since it uses less digits than its factorization.

30449769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2797 (or 2774 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 30449769 is about 5518.1309335680. The cubic root of 30449769 is about 312.2683732127.

The spelling of 30449769 in words is "thirty million, four hundred forty-nine thousand, seven hundred sixty-nine".