15230420 has 12 divisors (see below), whose sum is σ = 31983924. Its totient is φ = 6092160.

The previous prime is 15230407. The next prime is 15230441. The reversal of 15230420 is 2403251.

15230420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8271376 + 6959044 = 2876^2 + 2638^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380741 + ... + 380780.

It is an arithmetic number, because the mean of its divisors is an integer number (2665327).

Almost surely, 2^15230420 is an apocalyptic number.

15230420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15230420 is an abundant number, since it is smaller than the sum of its proper divisors (16753504).

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

15230420 is a wasteful number, since it uses less digits than its factorization.

15230420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761530 (or 761528 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 15230420 is about 3902.6170706335. The cubic root of 15230420 is about 247.8776060989.

Adding to 15230420 its reverse (2403251), we get a palindrome (17633671).

The spelling of 15230420 in words is "fifteen million, two hundred thirty thousand, four hundred twenty".