155440334 has 16 divisors (see below), whose sum is σ = 266632800. Its totient is φ = 66576384.

The previous prime is 155440331. The next prime is 155440339. The reversal of 155440334 is 433044551.

155440334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 155440297 and 155440306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155440331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35582 + ... + 39710.

It is an arithmetic number, because the mean of its divisors is an integer number (16664550).

Almost surely, 2^155440334 is an apocalyptic number.

155440334 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

155440334 is a deficient number, since it is larger than the sum of its proper divisors (111192466).

155440334 is a wasteful number, since it uses less digits than its factorization.

155440334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6827.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 155440334 is about 12467.5712951641. The cubic root of 155440334 is about 537.6767289055.

Adding to 155440334 its reverse (433044551), we get a palindrome (588484885).

The spelling of 155440334 in words is "one hundred fifty-five million, four hundred forty thousand, three hundred thirty-four".