42280146 has 12 divisors (see below), whose sum is σ = 91607022. Its totient is φ = 14093376.

The previous prime is 42280123. The next prime is 42280153. The reversal of 42280146 is 64108224.

It can be written as a sum of positive squares in only one way, i.e., 39200121 + 3080025 = 6261^2 + 1755^2 .

It is a super-2 number, since 2×42280146² = 3575221491562632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1174431 + ... + 1174466.

Almost surely, 2^42280146 is an apocalyptic number.

42280146 is an abundant number, since it is smaller than the sum of its proper divisors (49326876).

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

42280146 is a wasteful number, since it uses less digits than its factorization.

42280146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2348905 (or 2348902 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 42280146 is about 6502.3185095779. The cubic root of 42280146 is about 348.3738056243.

The spelling of 42280146 in words is "forty-two million, two hundred eighty thousand, one hundred forty-six".