3551472 has 40 divisors (see below), whose sum is σ = 10195280. Its totient is φ = 1183680.

The previous prime is 3551467. The next prime is 3551473. The reversal of 3551472 is 2741553.

It is a happy number.

It is a super-2 number, since 2×3551472² = 25225906733568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3551473) 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, 3679 + ... + 4542.

It is an arithmetic number, because the mean of its divisors is an integer number (254882).

Almost surely, 2^3551472 is an apocalyptic number.

It is an amenable number.

3551472 is an abundant number, since it is smaller than the sum of its proper divisors (6643808).

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

3551472 is a wasteful number, since it uses less digits than its factorization.

3551472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8238 (or 8226 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 3551472 is about 1884.5349558976. The cubic root of 3551472 is about 152.5701119875.

The spelling of 3551472 in words is "three million, five hundred fifty-one thousand, four hundred seventy-two".