1906730 has 16 divisors (see below), whose sum is σ = 3922560. Its totient is φ = 653712.

The previous prime is 1906727. The next prime is 1906733. The reversal of 1906730 is 376091.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1906727) and next prime (1906733).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1906730.

It is not an unprimeable number, because it can be changed into a prime (1906733) 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, 13550 + ... + 13689.

It is an arithmetic number, because the mean of its divisors is an integer number (245160).

2^1906730 is an apocalyptic number.

1906730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1906730 is an abundant number, since it is smaller than the sum of its proper divisors (2015830).

1906730 is a wasteful number, since it uses less digits than its factorization.

1906730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27253.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 1906730 is about 1380.8439448395. The cubic root of 1906730 is about 124.0022979109.

The spelling of 1906730 in words is "one million, nine hundred six thousand, seven hundred thirty".