15342140 has 24 divisors (see below), whose sum is σ = 35147952. Its totient is φ = 5578880.

The previous prime is 15342137. The next prime is 15342157. The reversal of 15342140 is 4124351.

15342140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34649 + ... + 35088.

It is an arithmetic number, because the mean of its divisors is an integer number (1464498).

Almost surely, 2^15342140 is an apocalyptic number.

15342140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15342140 is an abundant number, since it is smaller than the sum of its proper divisors (19805812).

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

15342140 is a wasteful number, since it uses less digits than its factorization.

15342140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69757 (or 69755 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 15342140 is about 3916.9043899488. The cubic root of 15342140 is about 248.4822173241.

Adding to 15342140 its reverse (4124351), we get a palindrome (19466491).

The spelling of 15342140 in words is "fifteen million, three hundred forty-two thousand, one hundred forty".