1948428 has 24 divisors (see below), whose sum is σ = 5051760. Its totient is φ = 649440.

The previous prime is 1948411. The next prime is 1948433. The reversal of 1948428 is 8248491.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1948392 and 1948401.

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, 8913 + ... + 9128.

It is an arithmetic number, because the mean of its divisors is an integer number (210490).

2^1948428 is an apocalyptic number.

1948428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1948428 is an abundant number, since it is smaller than the sum of its proper divisors (3103332).

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

1948428 is a wasteful number, since it uses less digits than its factorization.

1948428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18054 (or 18046 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 1948428 is about 1395.8610246009. The cubic root of 1948428 is about 124.8997169012.

The spelling of 1948428 in words is "one million, nine hundred forty-eight thousand, four hundred twenty-eight".