15190040 has 16 divisors (see below), whose sum is σ = 34177680. Its totient is φ = 6076000.

The previous prime is 15190033. The next prime is 15190099. The reversal of 15190040 is 4009151.

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

It is a junction number, because it is equal to n+sod(n) for n = 15189994 and 15190021.

It is a congruent number.

It is an unprimeable number.

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, 189836 + ... + 189915.

It is an arithmetic number, because the mean of its divisors is an integer number (2136105).

Almost surely, 2^15190040 is an apocalyptic number.

15190040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15190040 is an abundant number, since it is smaller than the sum of its proper divisors (18987640).

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

15190040 is a wasteful number, since it uses less digits than its factorization.

15190040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379762 (or 379758 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 15190040 is about 3897.4401855577. The cubic root of 15190040 is about 247.6583484864.

Adding to 15190040 its reverse (4009151), we get a palindrome (19199191).

The spelling of 15190040 in words is "fifteen million, one hundred ninety thousand, forty".