155693430 has 24 divisors (see below), whose sum is σ = 404803152. Its totient is φ = 41518224.

The previous prime is 155693423. The next prime is 155693449. The reversal of 155693430 is 34396551.

It is a congruent number.

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, 864874 + ... + 865053.

It is an arithmetic number, because the mean of its divisors is an integer number (16866798).

Almost surely, 2^155693430 is an apocalyptic number.

155693430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155693430 is an abundant number, since it is smaller than the sum of its proper divisors (249109722).

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

155693430 is a wasteful number, since it uses less digits than its factorization.

155693430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729940 (or 1729937 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 155693430 is about 12477.7173393213. The cubic root of 155693430 is about 537.9683950238.

The spelling of 155693430 in words is "one hundred fifty-five million, six hundred ninety-three thousand, four hundred thirty".