280155414 has 48 divisors (see below), whose sum is σ = 703874304. Its totient is φ = 72766320.

The previous prime is 280155413. The next prime is 280155439. The reversal of 280155414 is 414551082.

It is a super-2 number, since 2×280155414² = 156974111987022792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280155413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22482 + ... + 32645.

It is an arithmetic number, because the mean of its divisors is an integer number (14664048).

Almost surely, 2^280155414 is an apocalyptic number.

280155414 is an abundant number, since it is smaller than the sum of its proper divisors (423718890).

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

280155414 is a wasteful number, since it uses less digits than its factorization.

280155414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55161 (or 55150 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 280155414 is about 16737.8437679410. The cubic root of 280155414 is about 654.3342800072.

The spelling of 280155414 in words is "two hundred eighty million, one hundred fifty-five thousand, four hundred fourteen".