42201240 has 64 divisors (see below), whose sum is σ = 127064160. Its totient is φ = 11212800.

The previous prime is 42201239. The next prime is 42201281. The reversal of 42201240 is 4210224.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47682 + ... + 48558.

Almost surely, 2^42201240 is an apocalyptic number.

42201240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42201240 is an abundant number, since it is smaller than the sum of its proper divisors (84862920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42201240 is a wasteful number, since it uses less digits than its factorization.

42201240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292 (or 1288 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 42201240 is about 6496.2481479697. The cubic root of 42201240 is about 348.1569512665.

Adding to 42201240 its reverse (4210224), we get a palindrome (46411464).

It can be divided in two parts, 4220 and 1240, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 42201240 in words is "forty-two million, two hundred one thousand, two hundred forty".