1915552 has 24 divisors (see below), whose sum is σ = 3894912. Its totient is φ = 926400.

The previous prime is 1915531. The next prime is 1915567. The reversal of 1915552 is 2555191.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1915552.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27 + ... + 1957.

It is an arithmetic number, because the mean of its divisors is an integer number (162288).

2^1915552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1915552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1947456).

1915552 is an abundant number, since it is smaller than the sum of its proper divisors (1979360).

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

1915552 is a wasteful number, since it uses less digits than its factorization.

1915552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972 (or 1964 counting only the distinct ones).

The product of its digits is 2250, while the sum is 28.

The square root of 1915552 is about 1384.0346816464. The cubic root of 1915552 is about 124.1932470659.

The spelling of 1915552 in words is "one million, nine hundred fifteen thousand, five hundred fifty-two".