42380723 has 16 divisors (see below), whose sum is σ = 53055744. Its totient is φ = 32888160.

The previous prime is 42380719. The next prime is 42380729. The reversal of 42380723 is 32708324.

It is a cyclic number.

It is not a de Polignac number, because 42380723 - 2² = 42380719 is a prime.

It is a super-2 number, since 2×42380723² = 3592251364005458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42380729) 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, 20336 + ... + 22322.

It is an arithmetic number, because the mean of its divisors is an integer number (3315984).

Almost surely, 2^42380723 is an apocalyptic number.

42380723 is a deficient number, since it is larger than the sum of its proper divisors (10675021).

42380723 is a wasteful number, since it uses less digits than its factorization.

42380723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 42380723 is about 6510.0478492865. The cubic root of 42380723 is about 348.6498267898.

The spelling of 42380723 in words is "forty-two million, three hundred eighty thousand, seven hundred twenty-three".