1550020284 has 36 divisors (see below), whose sum is σ = 3919395480. Its totient is φ = 516503520.

The previous prime is 1550020267. The next prime is 1550020319. The reversal of 1550020284 is 4820200551.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1550020284² = 4805125761622881312, 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 in 11 ways as a sum of consecutive naturals, for example, 154287 + ... + 164025.

Almost surely, 2^1550020284 is an apocalyptic number.

It is an amenable number.

1550020284 is an abundant number, since it is smaller than the sum of its proper divisors (2369375196).

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

1550020284 is a wasteful number, since it uses less digits than its factorization.

1550020284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14170 (or 14165 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 1550020284 is about 39370.2969762739. The cubic root of 1550020284 is about 1157.2995755339.

The spelling of 1550020284 in words is "one billion, five hundred fifty million, twenty thousand, two hundred eighty-four".