201092420 has 12 divisors (see below), whose sum is σ = 422294124. Its totient is φ = 80436960.

The previous prime is 201092407. The next prime is 201092429. The reversal of 201092420 is 24290102.

It can be written as a sum of positive squares in 2 ways, for example, as 44542276 + 156550144 = 6674^2 + 12512^2 .

It is a super-2 number, since 2×201092420² = 80876322762912800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 10054621 = 201092420 / (2 + 0 + 1 + 0 + 9 + 2 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 201092392 and 201092401.

It is not an unprimeable number, because it can be changed into a prime (201092429) 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, 5027291 + ... + 5027330.

It is an arithmetic number, because the mean of its divisors is an integer number (35191177).

Almost surely, 2^201092420 is an apocalyptic number.

201092420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201092420 is an abundant number, since it is smaller than the sum of its proper divisors (221201704).

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

201092420 is a wasteful number, since it uses less digits than its factorization.

201092420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10054630 (or 10054628 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 201092420 is about 14180.7059062657. The cubic root of 201092420 is about 585.8663667295.

The spelling of 201092420 in words is "two hundred one million, ninety-two thousand, four hundred twenty".