42736451 has 8 divisors (see below), whose sum is σ = 43680000. Its totient is φ = 41803272.

The previous prime is 42736427. The next prime is 42736457. The reversal of 42736451 is 15463724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42736451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42736457) 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 7 ways as a sum of consecutive naturals, for example, 6050 + ... + 11048.

It is an arithmetic number, because the mean of its divisors is an integer number (5460000).

Almost surely, 2^42736451 is an apocalyptic number.

42736451 is a deficient number, since it is larger than the sum of its proper divisors (943549).

42736451 is a wasteful number, since it uses less digits than its factorization.

42736451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5185.

The product of its digits is 20160, while the sum is 32.

The square root of 42736451 is about 6537.3122152762. The cubic root of 42736451 is about 349.6225890961.

The spelling of 42736451 in words is "forty-two million, seven hundred thirty-six thousand, four hundred fifty-one".