42672451 has 2 divisors, whose sum is σ = 42672452. Its totient is φ = 42672450.

The previous prime is 42672437. The next prime is 42672463. The reversal of 42672451 is 15427624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42672451 - 2⁵ = 42672419 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42672251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21336225 + 21336226.

It is an arithmetic number, because the mean of its divisors is an integer number (21336226).

Almost surely, 2^42672451 is an apocalyptic number.

42672451 is a deficient number, since it is larger than the sum of its proper divisors (1).

42672451 is an equidigital number, since it uses as much as digits as its factorization.

42672451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 31.

The square root of 42672451 is about 6532.4154032027. The cubic root of 42672451 is about 349.4479760579.

The spelling of 42672451 in words is "forty-two million, six hundred seventy-two thousand, four hundred fifty-one".