42737220 has 240 divisors, whose sum is σ = 148313088. Its totient is φ = 10264320.

The previous prime is 42737209. The next prime is 42737231. The reversal of 42737220 is 2273724.

It is an interprime number because it is at equal distance from previous prime (42737209) and next prime (42737231).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1155042 + ... + 1155078.

Almost surely, 2^42737220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42737220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74156544).

42737220 is an abundant number, since it is smaller than the sum of its proper divisors (105575868).

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

42737220 is a wasteful number, since it uses less digits than its factorization.

42737220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 42737220 is about 6537.3710312327. The cubic root of 42737220 is about 349.6246861206.

The spelling of 42737220 in words is "forty-two million, seven hundred thirty-seven thousand, two hundred twenty".