200921492 has 24 divisors (see below), whose sum is σ = 355269096. Its totient is φ = 99422208.

The previous prime is 200921473. The next prime is 200921519. The reversal of 200921492 is 294129002.

It can be written as a sum of positive squares in 4 ways, for example, as 7043716 + 193877776 = 2654^2 + 13924^2 .

It is a super-3 number, since 3×200921492³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179318 + ... + 180434.

It is an arithmetic number, because the mean of its divisors is an integer number (14802879).

Almost surely, 2^200921492 is an apocalyptic number.

It is an amenable number.

200921492 is a deficient number, since it is larger than the sum of its proper divisors (154347604).

200921492 is a wasteful number, since it uses less digits than its factorization.

200921492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547 (or 1545 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 200921492 is about 14174.6778446637. The cubic root of 200921492 is about 585.7003247458.

The spelling of 200921492 in words is "two hundred million, nine hundred twenty-one thousand, four hundred ninety-two".