74267649 has 12 divisors (see below), whose sum is σ = 107448276. Its totient is φ = 49432032.

The previous prime is 74267647. The next prime is 74267651. The reversal of 74267649 is 94676247.

It is an interprime number because it is at equal distance from previous prime (74267647) and next prime (74267651).

It can be written as a sum of positive squares in 2 ways, for example, as 11778624 + 62489025 = 3432^2 + 7905^2 .

It is not a de Polignac number, because 74267649 - 2¹ = 74267647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74267647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 442 + ... + 12195.

It is an arithmetic number, because the mean of its divisors is an integer number (8954023).

Almost surely, 2^74267649 is an apocalyptic number.

It is an amenable number.

74267649 is a deficient number, since it is larger than the sum of its proper divisors (33180627).

74267649 is a wasteful number, since it uses less digits than its factorization.

74267649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13296 (or 13293 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 74267649 is about 8617.8680078080. The cubic root of 74267649 is about 420.3391987730.

The spelling of 74267649 in words is "seventy-four million, two hundred sixty-seven thousand, six hundred forty-nine".