1409727825 has 72 divisors (see below), whose sum is σ = 2765689056. Its totient is φ = 680736000.

The previous prime is 1409727817. The next prime is 1409727829. The reversal of 1409727825 is 5287279041.

It is a happy number.

It is not a de Polignac number, because 1409727825 - 2³ = 1409727817 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1409727829) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 694462 + ... + 696488.

It is an arithmetic number, because the mean of its divisors is an integer number (38412348).

Almost surely, 2^1409727825 is an apocalyptic number.

1409727825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1409727825 is a deficient number, since it is larger than the sum of its proper divisors (1355961231).

1409727825 is a wasteful number, since it uses less digits than its factorization.

1409727825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2335 (or 2327 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 1409727825 is about 37546.3423651359. The cubic root of 1409727825 is about 1121.2740139449.

The spelling of 1409727825 in words is "one billion, four hundred nine million, seven hundred twenty-seven thousand, eight hundred twenty-five".