402541231 has 8 divisors (see below), whose sum is σ = 418320000. Its totient is φ = 386937120.

The previous prime is 402541219. The next prime is 402541297. The reversal of 402541231 is 132145204.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402541231 is a prime.

It is a super-2 number, since 2×402541231² = 324078885309990722, 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 (402541831) 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, 38956 + ... + 48193.

It is an arithmetic number, because the mean of its divisors is an integer number (52290000).

Almost surely, 2^402541231 is an apocalyptic number.

402541231 is a deficient number, since it is larger than the sum of its proper divisors (15778769).

402541231 is a wasteful number, since it uses less digits than its factorization.

402541231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87329.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 402541231 is about 20063.4301902740. The cubic root of 402541231 is about 738.3633362189.

Adding to 402541231 its reverse (132145204), we get a palindrome (534686435).

The spelling of 402541231 in words is "four hundred two million, five hundred forty-one thousand, two hundred thirty-one".