3552390 has 64 divisors (see below), whose sum is σ = 9676800. Its totient is φ = 927072.

The previous prime is 3552347. The next prime is 3552391. The reversal of 3552390 is 932553.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3552391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15819 + ... + 16041.

It is an arithmetic number, because the mean of its divisors is an integer number (151200).

Almost surely, 2^3552390 is an apocalyptic number.

3552390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3552390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4838400).

3552390 is an abundant number, since it is smaller than the sum of its proper divisors (6124410).

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

3552390 is a wasteful number, since it uses less digits than its factorization.

3552390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

The square root of 3552390 is about 1884.7785015752. The cubic root of 3552390 is about 152.5832565181.

It can be divided in two parts, 3552 and 390, that multiplied together give a triangular number (1385280 = T₁₆₆₄).

The spelling of 3552390 in words is "three million, five hundred fifty-two thousand, three hundred ninety".