155044340 has 24 divisors (see below), whose sum is σ = 355192992. Its totient is φ = 56379680.

The previous prime is 155044339. The next prime is 155044349. The reversal of 155044340 is 43440551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155044349) 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, 352154 + ... + 352593.

It is an arithmetic number, because the mean of its divisors is an integer number (14799708).

Almost surely, 2^155044340 is an apocalyptic number.

155044340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155044340 is an abundant number, since it is smaller than the sum of its proper divisors (200148652).

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

155044340 is a wasteful number, since it uses less digits than its factorization.

155044340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704767 (or 704765 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 155044340 is about 12451.6802079077. The cubic root of 155044340 is about 537.2197522301.

Adding to 155044340 its reverse (43440551), we get a palindrome (198484891).

The spelling of 155044340 in words is "one hundred fifty-five million, forty-four thousand, three hundred forty".