1942290 has 48 divisors (see below), whose sum is σ = 5773248. Its totient is φ = 443808.

The previous prime is 1942273. The next prime is 1942307. The reversal of 1942290 is 922491.

It is an interprime number because it is at equal distance from previous prime (1942273) and next prime (1942307).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 912 + ... + 2171.

It is an arithmetic number, because the mean of its divisors is an integer number (120276).

2^1942290 is an apocalyptic number.

1942290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1942290 is an abundant number, since it is smaller than the sum of its proper divisors (3830958).

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

1942290 is a wasteful number, since it uses less digits than its factorization.

1942290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103 (or 3100 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1942290 is about 1393.6606473600. The cubic root of 1942290 is about 124.7684245809.

The spelling of 1942290 in words is "one million, nine hundred forty-two thousand, two hundred ninety".