210042292 has 6 divisors (see below), whose sum is σ = 367574018. Its totient is φ = 105021144.

The previous prime is 210042281. The next prime is 210042341. The reversal of 210042292 is 292240012.

It can be written as a sum of positive squares in only one way, i.e., 209786256 + 256036 = 14484^2 + 506^2 .

It is a super-2 number, since 2×210042292² = 88235528857226528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26255283 + ... + 26255290.

Almost surely, 2^210042292 is an apocalyptic number.

It is an amenable number.

210042292 is a deficient number, since it is larger than the sum of its proper divisors (157531726).

210042292 is a wasteful number, since it uses less digits than its factorization.

210042292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52510577 (or 52510575 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 210042292 is about 14492.8358853607. The cubic root of 210042292 is about 594.4320942404.

The spelling of 210042292 in words is "two hundred ten million, forty-two thousand, two hundred ninety-two".