29880545 has 12 divisors (see below), whose sum is σ = 36561276. Its totient is φ = 23437440.

The previous prime is 29880541. The next prime is 29880551. The reversal of 29880545 is 54508892.

It can be written as a sum of positive squares in 6 ways, for example, as 23203489 + 6677056 = 4817^2 + 2584^2 .

It is not a de Polignac number, because 29880545 - 2² = 29880541 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29880541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95309 + ... + 95621.

It is an arithmetic number, because the mean of its divisors is an integer number (3046773).

Almost surely, 2^29880545 is an apocalyptic number.

It is an amenable number.

29880545 is a deficient number, since it is larger than the sum of its proper divisors (6680731).

29880545 is an frugal number, since it uses more digits than its factorization.

29880545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 29880545 is about 5466.3099985273. The cubic root of 29880545 is about 310.3102859250.

The spelling of 29880545 in words is "twenty-nine million, eight hundred eighty thousand, five hundred forty-five".