15409485 has 96 divisors (see below), whose sum is σ = 33965568. Its totient is φ = 6289920.

The previous prime is 15409483. The next prime is 15409487. The reversal of 15409485 is 58490451.

15409485 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (15409483) and next prime (15409487).

It is not a de Polignac number, because 15409485 - 2¹ = 15409483 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15409483) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 217000 + ... + 217070.

It is an arithmetic number, because the mean of its divisors is an integer number (353808).

Almost surely, 2^15409485 is an apocalyptic number.

15409485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15409485 is an abundant number, since it is smaller than the sum of its proper divisors (18556083).

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

15409485 is a wasteful number, since it uses less digits than its factorization.

15409485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 15409485 is about 3925.4916889480. The cubic root of 15409485 is about 248.8452611918.

It can be divided in two parts, 1540 and 9485, that added together give a square (11025 = 105²).

The spelling of 15409485 in words is "fifteen million, four hundred nine thousand, four hundred eighty-five".