15146420 has 48 divisors (see below), whose sum is σ = 34957440. Its totient is φ = 5486976.

The previous prime is 15146387. The next prime is 15146429. The reversal of 15146420 is 2464151.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15146429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7874 + ... + 9606.

It is an arithmetic number, because the mean of its divisors is an integer number (728280).

Almost surely, 2^15146420 is an apocalyptic number.

15146420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15146420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17478720).

15146420 is an abundant number, since it is smaller than the sum of its proper divisors (19811020).

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

15146420 is a wasteful number, since it uses less digits than its factorization.

15146420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784 (or 1782 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 15146420 is about 3891.8401817135. The cubic root of 15146420 is about 247.4210611092.

The spelling of 15146420 in words is "fifteen million, one hundred forty-six thousand, four hundred twenty".