42738220 has 48 divisors (see below), whose sum is σ = 107976960. Its totient is φ = 13881024.

The previous prime is 42738211. The next prime is 42738229. The reversal of 42738220 is 2283724.

It is an interprime number because it is at equal distance from previous prime (42738211) and next prime (42738229).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (42738229) 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, 5374 + ... + 10693.

It is an arithmetic number, because the mean of its divisors is an integer number (2249520).

Almost surely, 2^42738220 is an apocalyptic number.

It is an amenable number.

42738220 is an abundant number, since it is smaller than the sum of its proper divisors (65238740).

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

42738220 is a wasteful number, since it uses less digits than its factorization.

42738220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16102 (or 16100 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 42738220 is about 6537.4475141297. The cubic root of 42738220 is about 349.6274130330.

The spelling of 42738220 in words is "forty-two million, seven hundred thirty-eight thousand, two hundred twenty".