402006435 has 32 divisors (see below), whose sum is σ = 664215552. Its totient is φ = 207486720.

The previous prime is 402006421. The next prime is 402006457. The reversal of 402006435 is 534600204.

It is not a de Polignac number, because 402006435 - 2⁷ = 402006307 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75532 + ... + 80678.

It is an arithmetic number, because the mean of its divisors is an integer number (20756736).

Almost surely, 2^402006435 is an apocalyptic number.

402006435 is a deficient number, since it is larger than the sum of its proper divisors (262209117).

402006435 is a wasteful number, since it uses less digits than its factorization.

402006435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5323.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 402006435 is about 20050.0981294357. The cubic root of 402006435 is about 738.0362071968.

Adding to 402006435 its reverse (534600204), we get a palindrome (936606639).

The spelling of 402006435 in words is "four hundred two million, six thousand, four hundred thirty-five".