42274740 has 24 divisors (see below), whose sum is σ = 118369440. Its totient is φ = 11273248.

The previous prime is 42274723. The next prime is 42274741. The reversal of 42274740 is 4747224.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 42274698 and 42274707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42274741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352230 + ... + 352349.

It is an arithmetic number, because the mean of its divisors is an integer number (4932060).

Almost surely, 2^42274740 is an apocalyptic number.

It is an amenable number.

42274740 is an abundant number, since it is smaller than the sum of its proper divisors (76094700).

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

42274740 is a wasteful number, since it uses less digits than its factorization.

42274740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704591 (or 704589 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 30.

The square root of 42274740 is about 6501.9027984122. The cubic root of 42274740 is about 348.3589571336.

The spelling of 42274740 in words is "forty-two million, two hundred seventy-four thousand, seven hundred forty".