134400442 has 16 divisors (see below), whose sum is σ = 227512800. Its totient is φ = 58984240.

The previous prime is 134400439. The next prime is 134400467. The reversal of 134400442 is 244004431.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104692 + ... + 105967.

It is an arithmetic number, because the mean of its divisors is an integer number (14219550).

Almost surely, 2^134400442 is an apocalyptic number.

134400442 is a deficient number, since it is larger than the sum of its proper divisors (93112358).

134400442 is a wasteful number, since it uses less digits than its factorization.

134400442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210701.

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

The square root of 134400442 is about 11593.1204599970. The cubic root of 134400442 is about 512.2322275182.

Adding to 134400442 its reverse (244004431), we get a palindrome (378404873).

It can be divided in two parts, 1 and 34400442, that added together give a palindrome (34400443).

The spelling of 134400442 in words is "one hundred thirty-four million, four hundred thousand, four hundred forty-two".