15420484 has 12 divisors (see below), whose sum is σ = 27328000. Its totient is φ = 7612488.

The previous prime is 15420481. The next prime is 15420499. The reversal of 15420484 is 48402451.

It is not an unprimeable number, because it can be changed into a prime (15420481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24084 + ... + 24715.

Almost surely, 2^15420484 is an apocalyptic number.

It is an amenable number.

15420484 is a deficient number, since it is larger than the sum of its proper divisors (11907516).

15420484 is a wasteful number, since it uses less digits than its factorization.

15420484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48882 (or 48880 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 15420484 is about 3926.8924100362. The cubic root of 15420484 is about 248.9044541298.

The spelling of 15420484 in words is "fifteen million, four hundred twenty thousand, four hundred eighty-four".