402641235 has 12 divisors (see below), whose sum is σ = 697911552. Its totient is φ = 214741968.

The previous prime is 402641233. The next prime is 402641269. The reversal of 402641235 is 532146204.

It is not a de Polignac number, because 402641235 - 2¹ = 402641233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402641199 and 402641208.

It is not an unprimeable number, because it can be changed into a prime (402641233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4473747 + ... + 4473836.

It is an arithmetic number, because the mean of its divisors is an integer number (58159296).

Almost surely, 2^402641235 is an apocalyptic number.

402641235 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

402641235 is a deficient number, since it is larger than the sum of its proper divisors (295270317).

402641235 is a wasteful number, since it uses less digits than its factorization.

402641235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8947594 (or 8947591 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 402641235 is about 20065.9222314849. The cubic root of 402641235 is about 738.4244754410.

Adding to 402641235 its reverse (532146204), we get a palindrome (934787439).

The spelling of 402641235 in words is "four hundred two million, six hundred forty-one thousand, two hundred thirty-five".