3890424 has 32 divisors (see below), whose sum is σ = 9792720. Its totient is φ = 1287936.

The previous prime is 3890423. The next prime is 3890429. The reversal of 3890424 is 4240983.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3890391 and 3890400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3890423) 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, 3684 + ... + 4620.

Almost surely, 2^3890424 is an apocalyptic number.

It is an amenable number.

3890424 is an abundant number, since it is smaller than the sum of its proper divisors (5902296).

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

3890424 is a wasteful number, since it uses less digits than its factorization.

3890424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119 (or 1115 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 3890424 is about 1972.4157776696. The cubic root of 3890424 is about 157.2771552440.

The spelling of 3890424 in words is "three million, eight hundred ninety thousand, four hundred twenty-four".