561434349 has 16 divisors (see below), whose sum is σ = 856673408. Its totient is φ = 320386752.

The previous prime is 561434329. The next prime is 561434369. The reversal of 561434349 is 943434165.

It is an interprime number because it is at equal distance from previous prime (561434329) and next prime (561434369).

It is not a de Polignac number, because 561434349 - 2⁹ = 561433837 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561434309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1762 + ... + 33555.

It is an arithmetic number, because the mean of its divisors is an integer number (53542088).

Almost surely, 2^561434349 is an apocalyptic number.

It is an amenable number.

561434349 is a deficient number, since it is larger than the sum of its proper divisors (295239059).

561434349 is a wasteful number, since it uses less digits than its factorization.

561434349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36084.

The product of its digits is 155520, while the sum is 39.

The square root of 561434349 is about 23694.6059051422. The cubic root of 561434349 is about 824.9601934880.

The spelling of 561434349 in words is "five hundred sixty-one million, four hundred thirty-four thousand, three hundred forty-nine".