202744421 has 8 divisors (see below), whose sum is σ = 232816800. Its totient is φ = 174612240.

The previous prime is 202744393. The next prime is 202744429. The reversal of 202744421 is 124447202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 202744421 - 2¹⁴ = 202728037 is a prime.

It is a super-2 number, since 2×202744421² = 82210600493250482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202744429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484826 + ... + 485243.

It is an arithmetic number, because the mean of its divisors is an integer number (29102100).

Almost surely, 2^202744421 is an apocalyptic number.

It is an amenable number.

202744421 is a deficient number, since it is larger than the sum of its proper divisors (30072379).

202744421 is a wasteful number, since it uses less digits than its factorization.

202744421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970099.

The product of its (nonzero) digits is 3584, while the sum is 26.

The square root of 202744421 is about 14238.8349593638. The cubic root of 202744421 is about 587.4663168255.

The spelling of 202744421 in words is "two hundred two million, seven hundred forty-four thousand, four hundred twenty-one".