15485740 has 24 divisors (see below), whose sum is σ = 33570432. Its totient is φ = 5994240.

The previous prime is 15485737. The next prime is 15485747. The reversal of 15485740 is 4758451.

15485740 = T₉₈₄ + T₉₈₅ + ... + T₁₀₁₄.

15485740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 15485696 and 15485705.

It is not an unprimeable number, because it can be changed into a prime (15485747) 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, 11869 + ... + 13108.

It is an arithmetic number, because the mean of its divisors is an integer number (1398768).

Almost surely, 2^15485740 is an apocalyptic number.

15485740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15485740 is an abundant number, since it is smaller than the sum of its proper divisors (18084692).

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

15485740 is a wasteful number, since it uses less digits than its factorization.

15485740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25017 (or 25015 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 15485740 is about 3935.1924984681. The cubic root of 15485740 is about 249.2550624771.

The spelling of 15485740 in words is "fifteen million, four hundred eighty-five thousand, seven hundred forty".