1949305 has 24 divisors (see below), whose sum is σ = 2652480. Its totient is φ = 1370880.

The previous prime is 1949257. The next prime is 1949309. The reversal of 1949305 is 5039491.

1949305 = 437² + 438² + ... + 446².

It is not a de Polignac number, because 1949305 - 2¹⁷ = 1818233 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

1949305 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27420 + ... + 27490.

It is an arithmetic number, because the mean of its divisors is an integer number (110520).

2^1949305 is an apocalyptic number.

It is an amenable number.

1949305 is a deficient number, since it is larger than the sum of its proper divisors (703175).

1949305 is a wasteful number, since it uses less digits than its factorization.

1949305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 1949305 is about 1396.1751322810. The cubic root of 1949305 is about 124.9184534796.

The spelling of 1949305 in words is "one million, nine hundred forty-nine thousand, three hundred five".