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390495 = 3573719
BaseRepresentation
bin1011111010101011111
3201211122210
41133111133
544443440
612211503
73214320
oct1372537
9654583
10390495
11247426
12169b93
13108981
14a2447
157aa80
hex5f55f

390495 has 16 divisors (see below), whose sum is σ = 714240. Its totient is φ = 178464.

The previous prime is 390493. The next prime is 390499. The reversal of 390495 is 594093.

It is not a de Polignac number, because 390495 - 21 = 390493 is a prime.

It is an Ulam number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1755 + ... + 1964.

It is an arithmetic number, because the mean of its divisors is an integer number (44640).

2390495 is an apocalyptic number.

390495 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

390495 is a deficient number, since it is larger than the sum of its proper divisors (323745).

390495 is a wasteful number, since it uses less digits than its factorization.

390495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3734.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 390495 is about 624.8959913458. The cubic root of 390495 is about 73.0923332797.

The spelling of 390495 in words is "three hundred ninety thousand, four hundred ninety-five".