1905942 has 16 divisors (see below), whose sum is σ = 3935232. Its totient is φ = 614760.

The previous prime is 1905923. The next prime is 1905979. The reversal of 1905942 is 2495091.

It is a happy number.

It is a super-2 number, since 2×1905942² = 7265229814728, which contains 22 as substring.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4938 + ... + 5309.

It is an arithmetic number, because the mean of its divisors is an integer number (245952).

2^1905942 is an apocalyptic number.

1905942 is an abundant number, since it is smaller than the sum of its proper divisors (2029290).

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

1905942 is a wasteful number, since it uses less digits than its factorization.

1905942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10283.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1905942 is about 1380.5585826034. The cubic root of 1905942 is about 123.9852132906.

The spelling of 1905942 in words is "one million, nine hundred five thousand, nine hundred forty-two".