39490 has 16 divisors (see below), whose sum is σ = 77760. Its totient is φ = 14320.

The previous prime is 39461. The next prime is 39499. The reversal of 39490 is 9493.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (39499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70 + ... + 289.

It is an arithmetic number, because the mean of its divisors is an integer number (4860).

2³⁹⁴⁹⁰ is an apocalyptic number.

39490 is a deficient number, since it is larger than the sum of its proper divisors (38270).

39490 is a wasteful number, since it uses less digits than its factorization.

39490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 39490 is about 198.7209098208. The cubic root of 39490 is about 34.0535488361.

It can be divided in two parts, 394 and 90, that added together give a palindrome (484).

The spelling of 39490 in words is "thirty-nine thousand, four hundred ninety".