42723236 has 12 divisors (see below), whose sum is σ = 78016512. Its totient is φ = 20432808.

The previous prime is 42723223. The next prime is 42723251. The reversal of 42723236 is 63232724.

It is a junction number, because it is equal to n+sod(n) for n = 42723199 and 42723208.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232100 + ... + 232283.

It is an arithmetic number, because the mean of its divisors is an integer number (6501376).

Almost surely, 2^42723236 is an apocalyptic number.

42723236 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

42723236 is a deficient number, since it is larger than the sum of its proper divisors (35293276).

42723236 is a wasteful number, since it uses less digits than its factorization.

42723236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464410 (or 464408 counting only the distinct ones).

The product of its digits is 12096, while the sum is 29.

The square root of 42723236 is about 6536.3014006394. The cubic root of 42723236 is about 349.5865485209.

The spelling of 42723236 in words is "forty-two million, seven hundred twenty-three thousand, two hundred thirty-six".