29490945 has 64 divisors (see below), whose sum is σ = 56678400. Its totient is φ = 12925440.

The previous prime is 29490943. The next prime is 29490947. The reversal of 29490945 is 54909492.

It is an interprime number because it is at equal distance from previous prime (29490943) and next prime (29490947).

It is not a de Polignac number, because 29490945 - 2¹ = 29490943 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 29490897 and 29490906.

It is not an unprimeable number, because it can be changed into a prime (29490943) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 71901 + ... + 72309.

It is an arithmetic number, because the mean of its divisors is an integer number (885600).

Almost surely, 2^29490945 is an apocalyptic number.

It is an amenable number.

29490945 is a deficient number, since it is larger than the sum of its proper divisors (27187455).

29490945 is a wasteful number, since it uses less digits than its factorization.

29490945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 29490945 is about 5430.5566013071. The cubic root of 29490945 is about 308.9557125917.

The spelling of 29490945 in words is "twenty-nine million, four hundred ninety thousand, nine hundred forty-five".