900342 has 16 divisors (see below), whose sum is σ = 2000880. Its totient is φ = 300096.

The previous prime is 900331. The next prime is 900349. The reversal of 900342 is 243009.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900349) 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, 8283 + ... + 8390.

It is an arithmetic number, because the mean of its divisors is an integer number (125055).

2⁹⁰⁰³⁴² is an apocalyptic number.

900342 is an abundant number, since it is smaller than the sum of its proper divisors (1100538).

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

900342 is a wasteful number, since it uses less digits than its factorization.

900342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16684 (or 16678 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 900342 is about 948.8635307567. The cubic root of 900342 is about 96.5611664440.

It can be divided in two parts, 9003 and 42, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 900342 in words is "nine hundred thousand, three hundred forty-two".