402026442 has 8 divisors (see below), whose sum is σ = 804052896. Its totient is φ = 134008812.

The previous prime is 402026431. The next prime is 402026461. The reversal of 402026442 is 244620204.

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

402026442 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33502198 + ... + 33502209.

It is an arithmetic number, because the mean of its divisors is an integer number (100506612).

Almost surely, 2^402026442 is an apocalyptic number.

402026442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402026442 is a wasteful number, since it uses less digits than its factorization.

402026442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67004412.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 402026442 is about 20050.5970484672. The cubic root of 402026442 is about 738.0484504879.

Adding to 402026442 its reverse (244620204), we get a palindrome (646646646).

The spelling of 402026442 in words is "four hundred two million, twenty-six thousand, four hundred forty-two".