275172040 has 128 divisors (see below), whose sum is σ = 738460800. Its totient is φ = 90961920.

The previous prime is 275172031. The next prime is 275172049. The reversal of 275172040 is 40271572.

It is an interprime number because it is at equal distance from previous prime (275172031) and next prime (275172049).

It is not an unprimeable number, because it can be changed into a prime (275172049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 417231 + ... + 417889.

It is an arithmetic number, because the mean of its divisors is an integer number (5769225).

Almost surely, 2^275172040 is an apocalyptic number.

275172040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 275172040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369230400).

275172040 is an abundant number, since it is smaller than the sum of its proper divisors (463288760).

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

275172040 is a wasteful number, since it uses less digits than its factorization.

275172040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767 (or 763 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 275172040 is about 16588.3103419245. The cubic root of 275172040 is about 650.4313034915.

The spelling of 275172040 in words is "two hundred seventy-five million, one hundred seventy-two thousand, forty".