155084040 has 48 divisors (see below), whose sum is σ = 504024300. Its totient is φ = 41355648.

The previous prime is 155084011. The next prime is 155084071. The reversal of 155084040 is 40480551.

It can be written as a sum of positive squares in 2 ways, for example, as 145009764 + 10074276 = 12042^2 + 3174^2 .

It is a junction number, because it is equal to n+sod(n) for n = 155083995 and 155084013.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 215035 + ... + 215754.

Almost surely, 2^155084040 is an apocalyptic number.

155084040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155084040 is an abundant number, since it is smaller than the sum of its proper divisors (348940260).

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

155084040 is a wasteful number, since it uses less digits than its factorization.

155084040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430806 (or 430799 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 155084040 is about 12453.2742682397. The cubic root of 155084040 is about 537.2656010586.

The spelling of 155084040 in words is "one hundred fifty-five million, eighty-four thousand, forty".