11415998 has 32 divisors (see below), whose sum is σ = 20321280. Its totient is φ = 4752000.

The previous prime is 11415997. The next prime is 11416037. The reversal of 11415998 is 89951411.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11415991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12518 + ... + 13398.

It is an arithmetic number, because the mean of its divisors is an integer number (635040).

Almost surely, 2^11415998 is an apocalyptic number.

11415998 is a deficient number, since it is larger than the sum of its proper divisors (8905282).

11415998 is a wasteful number, since it uses less digits than its factorization.

11415998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944.

The product of its digits is 12960, while the sum is 38.

The square root of 11415998 is about 3378.7568719871. The cubic root of 11415998 is about 225.1669411262.

The spelling of 11415998 in words is "eleven million, four hundred fifteen thousand, nine hundred ninety-eight".