401602853 has 4 divisors (see below), whose sum is σ = 401803980. Its totient is φ = 401401728.

The previous prime is 401602819. The next prime is 401602919. The reversal of 401602853 is 358206104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 298011169 + 103591684 = 17263^2 + 10178^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401602853 is a prime.

It is a super-2 number, since 2×401602853² = 322569703075479218, 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 (401632853) 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, 97538 + ... + 101571.

It is an arithmetic number, because the mean of its divisors is an integer number (100450995).

Almost surely, 2^401602853 is an apocalyptic number.

It is an amenable number.

401602853 is a deficient number, since it is larger than the sum of its proper divisors (201127).

401602853 is a wasteful number, since it uses less digits than its factorization.

401602853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201126.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 401602853 is about 20040.0312624507. The cubic root of 401602853 is about 737.7891482500.

Adding to 401602853 its reverse (358206104), we get a palindrome (759808957).

The spelling of 401602853 in words is "four hundred one million, six hundred two thousand, eight hundred fifty-three".