1900342 has 16 divisors (see below), whose sum is σ = 3072960. Its totient is φ = 878472.

The previous prime is 1900337. The next prime is 1900363. The reversal of 1900342 is 2430091.

It is a super-2 number, since 2×1900342² = 7222599433928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

1900342 is a modest number, since divided by 342 gives 190 as remainder.

It is a plaindrome in base 12.

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, 1053 + ... + 2215.

It is an arithmetic number, because the mean of its divisors is an integer number (192060).

2^1900342 is an apocalyptic number.

1900342 is a deficient number, since it is larger than the sum of its proper divisors (1172618).

1900342 is a wasteful number, since it uses less digits than its factorization.

1900342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1900342 is about 1378.5289260658. The cubic root of 1900342 is about 123.8636638912.

It can be divided in two parts, 190034 and 2, that added together give a triangular number (190036 = T₆₁₆).

The spelling of 1900342 in words is "one million, nine hundred thousand, three hundred forty-two".