152170840 has 16 divisors (see below), whose sum is σ = 342384480. Its totient is φ = 60868320.

The previous prime is 152170831. The next prime is 152170841. The reversal of 152170840 is 48071251.

It is a junction number, because it is equal to n+sod(n) for n = 152170799 and 152170808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152170841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1902096 + ... + 1902175.

It is an arithmetic number, because the mean of its divisors is an integer number (21399030).

Almost surely, 2^152170840 is an apocalyptic number.

152170840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152170840 is an abundant number, since it is smaller than the sum of its proper divisors (190213640).

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

152170840 is a wasteful number, since it uses less digits than its factorization.

152170840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3804282 (or 3804278 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 152170840 is about 12335.7545371169. The cubic root of 152170840 is about 533.8801977501.

It can be divided in two parts, 1521 and 70840, that added together give a square (72361 = 269²).

The spelling of 152170840 in words is "one hundred fifty-two million, one hundred seventy thousand, eight hundred forty".