42211740 has 48 divisors (see below), whose sum is σ = 118587168. Its totient is φ = 11218944.

The previous prime is 42211717. The next prime is 42211747. The reversal of 42211740 is 4711224.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42211747) 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, 20184 + ... + 22176.

It is an arithmetic number, because the mean of its divisors is an integer number (2470566).

Almost surely, 2^42211740 is an apocalyptic number.

It is an amenable number.

42211740 is an abundant number, since it is smaller than the sum of its proper divisors (76375428).

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

42211740 is a wasteful number, since it uses less digits than its factorization.

42211740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2358 (or 2356 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 42211740 is about 6497.0562564903. The cubic root of 42211740 is about 348.1858236002.

Adding to 42211740 its reverse (4711224), we get a palindrome (46922964).

The spelling of 42211740 in words is "forty-two million, two hundred eleven thousand, seven hundred forty".