1948440 has 64 divisors (see below), whose sum is σ = 6300000. Its totient is φ = 479232.

The previous prime is 1948433. The next prime is 1948447. The reversal of 1948440 is 448491.

It is an interprime number because it is at equal distance from previous prime (1948433) and next prime (1948447).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1948398 and 1948407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1948447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 936 + ... + 2184.

2^1948440 is an apocalyptic number.

1948440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1948440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3150000).

1948440 is an abundant number, since it is smaller than the sum of its proper divisors (4351560).

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

1948440 is a wasteful number, since it uses less digits than its factorization.

1948440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276 (or 1272 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1948440 is about 1395.8653230165. The cubic root of 1948440 is about 124.8999733120.

The spelling of 1948440 in words is "one million, nine hundred forty-eight thousand, four hundred forty".