42248730 has 32 divisors (see below), whose sum is σ = 101689344. Its totient is φ = 11233856.

The previous prime is 42248729. The next prime is 42248749. The reversal of 42248730 is 3784224.

It is a super-2 number, since 2×42248730² = 3569910373225800, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9652 + ... + 13328.

It is an arithmetic number, because the mean of its divisors is an integer number (3177792).

Almost surely, 2^42248730 is an apocalyptic number.

42248730 is an abundant number, since it is smaller than the sum of its proper divisors (59440614).

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

42248730 is a wasteful number, since it uses less digits than its factorization.

42248730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4070.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 42248730 is about 6499.9023069582. The cubic root of 42248730 is about 348.2874985796.

The spelling of 42248730 in words is "forty-two million, two hundred forty-eight thousand, seven hundred thirty".