42401236 has 48 divisors (see below), whose sum is σ = 82575360. Its totient is φ = 18960480.

The previous prime is 42401231. The next prime is 42401237. The reversal of 42401236 is 63210424.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42401231) 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, 221901 + ... + 222091.

It is an arithmetic number, because the mean of its divisors is an integer number (1720320).

Almost surely, 2^42401236 is an apocalyptic number.

42401236 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

42401236 is a deficient number, since it is larger than the sum of its proper divisors (40174124).

42401236 is a wasteful number, since it uses less digits than its factorization.

42401236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 42401236 is about 6511.6231463438. The cubic root of 42401236 is about 348.7060685575.

It can be divided in two parts, 4240 and 1236, that added together give a square (5476 = 74²).

The spelling of 42401236 in words is "forty-two million, four hundred one thousand, two hundred thirty-six".