15089940 has 36 divisors (see below), whose sum is σ = 45773364. Its totient is φ = 4023936.

The previous prime is 15089929. The next prime is 15089951. The reversal of 15089940 is 4998051.

It is an interprime number because it is at equal distance from previous prime (15089929) and next prime (15089951).

It can be written as a sum of positive squares in 2 ways, for example, as 6411024 + 8678916 = 2532^2 + 2946^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 15089895 and 15089904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41737 + ... + 42096.

Almost surely, 2^15089940 is an apocalyptic number.

15089940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15089940 is an abundant number, since it is smaller than the sum of its proper divisors (30683424).

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

15089940 is a wasteful number, since it uses less digits than its factorization.

15089940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83848 (or 83843 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 15089940 is about 3884.5771970705. The cubic root of 15089940 is about 247.1131391183.

The spelling of 15089940 in words is "fifteen million, eighty-nine thousand, nine hundred forty".