42723401 has 8 divisors (see below), whose sum is σ = 49032960. Its totient is φ = 36465408.

The previous prime is 42723389. The next prime is 42723403. The reversal of 42723401 is 10432724.

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

It is a de Polignac number, because none of the positive numbers 2^k-42723401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42723403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11096 + ... + 14441.

It is an arithmetic number, because the mean of its divisors is an integer number (6129120).

Almost surely, 2^42723401 is an apocalyptic number.

It is an amenable number.

42723401 is a deficient number, since it is larger than the sum of its proper divisors (6309559).

42723401 is a wasteful number, since it uses less digits than its factorization.

42723401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25783.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 42723401 is about 6536.3140224441. The cubic root of 42723401 is about 349.5869985626.

The spelling of 42723401 in words is "forty-two million, seven hundred twenty-three thousand, four hundred one".