402002030 has 8 divisors (see below), whose sum is σ = 723603672. Its totient is φ = 160800808.

The previous prime is 402002023. The next prime is 402002033. The reversal of 402002030 is 30200204.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402002033) 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, 20100092 + ... + 20100111.

It is an arithmetic number, because the mean of its divisors is an integer number (90450459).

Almost surely, 2^402002030 is an apocalyptic number.

402002030 is a deficient number, since it is larger than the sum of its proper divisors (321601642).

402002030 is a wasteful number, since it uses less digits than its factorization.

402002030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40200210.

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 402002030 is about 20049.9882792983. The cubic root of 402002030 is about 738.0335115008.

Adding to 402002030 its reverse (30200204), we get a palindrome (432202234).

The spelling of 402002030 in words is "four hundred two million, two thousand, thirty".