3975444 has 36 divisors (see below), whose sum is σ = 10963680. Its totient is φ = 1204560.

The previous prime is 3975437. The next prime is 3975449. The reversal of 3975444 is 4445793.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3975399 and 3975408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3975449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4624 + ... + 5415.

Almost surely, 2^3975444 is an apocalyptic number.

It is an amenable number.

3975444 is an abundant number, since it is smaller than the sum of its proper divisors (6988236).

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

3975444 is a wasteful number, since it uses less digits than its factorization.

3975444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10060 (or 10055 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 3975444 is about 1993.8515491380. The cubic root of 3975444 is about 158.4146030308.

The spelling of 3975444 in words is "three million, nine hundred seventy-five thousand, four hundred forty-four".