42292420 has 12 divisors (see below), whose sum is σ = 88814124. Its totient is φ = 16916960.

The previous prime is 42292417. The next prime is 42292421. The reversal of 42292420 is 2429224.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10188864 + 32103556 = 3192^2 + 5666^2 .

It is not an unprimeable number, because it can be changed into a prime (42292421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1057291 + ... + 1057330.

It is an arithmetic number, because the mean of its divisors is an integer number (7401177).

Almost surely, 2^42292420 is an apocalyptic number.

It is an amenable number.

42292420 is an abundant number, since it is smaller than the sum of its proper divisors (46521704).

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

42292420 is a wasteful number, since it uses less digits than its factorization.

42292420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2114630 (or 2114628 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 42292420 is about 6503.2622582824. The cubic root of 42292420 is about 348.4075135368.

The spelling of 42292420 in words is "forty-two million, two hundred ninety-two thousand, four hundred twenty".