403842253 has 4 divisors (see below), whose sum is σ = 404059968. Its totient is φ = 403624540.

The previous prime is 403842247. The next prime is 403842269. The reversal of 403842253 is 352248304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 403842253 - 2¹³ = 403834061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403842203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106051 + ... + 109792.

It is an arithmetic number, because the mean of its divisors is an integer number (101014992).

Almost surely, 2^403842253 is an apocalyptic number.

It is an amenable number.

403842253 is a deficient number, since it is larger than the sum of its proper divisors (217715).

403842253 is a wasteful number, since it uses less digits than its factorization.

403842253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217714.

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 403842253 is about 20095.8267558217. The cubic root of 403842253 is about 739.1579495424.

The spelling of 403842253 in words is "four hundred three million, eight hundred forty-two thousand, two hundred fifty-three".