120890284 has 12 divisors (see below), whose sum is σ = 213224704. Its totient is φ = 59968944.

The previous prime is 120890261. The next prime is 120890291. The reversal of 120890284 is 482098021.

It is a super-2 number, since 2×120890284² = 29228921531201312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118479 + ... + 119494.

Almost surely, 2^120890284 is an apocalyptic number.

It is an amenable number.

120890284 is a deficient number, since it is larger than the sum of its proper divisors (92334420).

120890284 is a wasteful number, since it uses less digits than its factorization.

120890284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238104 (or 238102 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 120890284 is about 10995.0117780746. The cubic root of 120890284 is about 494.4592046466.

The spelling of 120890284 in words is "one hundred twenty million, eight hundred ninety thousand, two hundred eighty-four".