402422134 has 8 divisors (see below), whose sum is σ = 618356088. Its totient is φ = 196303440.

The previous prime is 402422123. The next prime is 402422149. The reversal of 402422134 is 431224204.

It is a happy number.

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

It is a super-2 number, since 2×402422134² = 323887147866227912, which contains 22 as substring.

It is a congruent 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, 2453712 + ... + 2453875.

It is an arithmetic number, because the mean of its divisors is an integer number (77294511).

Almost surely, 2^402422134 is an apocalyptic number.

402422134 is a deficient number, since it is larger than the sum of its proper divisors (215933954).

402422134 is a wasteful number, since it uses less digits than its factorization.

402422134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4907630.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 402422134 is about 20060.4619587885. The cubic root of 402422134 is about 738.2905109401.

Adding to 402422134 its reverse (431224204), we get a palindrome (833646338).

The spelling of 402422134 in words is "four hundred two million, four hundred twenty-two thousand, one hundred thirty-four".