395252280 has 48 divisors (see below), whose sum is σ = 1284571080. Its totient is φ = 105400512.

The previous prime is 395252279. The next prime is 395252317. The reversal of 395252280 is 82252593.

395252280 is a `hidden beast` number, since 3 + 9 + 52 + 522 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 548602 + ... + 549321.

Almost surely, 2^395252280 is an apocalyptic number.

395252280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

395252280 is an abundant number, since it is smaller than the sum of its proper divisors (889318800).

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

395252280 is a wasteful number, since it uses less digits than its factorization.

395252280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097940 (or 1097933 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 395252280 is about 19880.9526934702. The cubic root of 395252280 is about 733.8795645663.

It can be divided in two parts, 39 and 5252280, that multiplied together give a triangular number (204838920 = T₂₀₂₄₀).

The spelling of 395252280 in words is "three hundred ninety-five million, two hundred fifty-two thousand, two hundred eighty".