15042340 has 12 divisors (see below), whose sum is σ = 31588956. Its totient is φ = 6016928.

The previous prime is 15042317. The next prime is 15042341. The reversal of 15042340 is 4324051.

It can be written as a sum of positive squares in 2 ways, for example, as 9696996 + 5345344 = 3114^2 + 2312^2 .

It is not an unprimeable number, because it can be changed into a prime (15042341) 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, 376039 + ... + 376078.

It is an arithmetic number, because the mean of its divisors is an integer number (2632413).

Almost surely, 2^15042340 is an apocalyptic number.

15042340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15042340 is an abundant number, since it is smaller than the sum of its proper divisors (16546616).

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

15042340 is a wasteful number, since it uses less digits than its factorization.

15042340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752126 (or 752124 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 15042340 is about 3878.4455649139. The cubic root of 15042340 is about 246.8530326018.

Adding to 15042340 its reverse (4324051), we get a palindrome (19366391).

It can be divided in two parts, 1504 and 2340, that added together give a square (3844 = 62²).

The spelling of 15042340 in words is "fifteen million, forty-two thousand, three hundred forty".