11618402 has 4 divisors (see below), whose sum is σ = 17427606. Its totient is φ = 5809200.

The previous prime is 11618401. The next prime is 11618413. The reversal of 11618402 is 20481611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20481611 = 1381 ⋅14831.

It can be written as a sum of positive squares in only one way, i.e., 9541921 + 2076481 = 3089^2 + 1441^2 .

It is not an unprimeable number, because it can be changed into a prime (11618401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2904599 + ... + 2904602.

Almost surely, 2^11618402 is an apocalyptic number.

11618402 is a deficient number, since it is larger than the sum of its proper divisors (5809204).

11618402 is an equidigital number, since it uses as much as digits as its factorization.

11618402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5809203.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 11618402 is about 3408.5777092506. The cubic root of 11618402 is about 226.4898789715.

The spelling of 11618402 in words is "eleven million, six hundred eighteen thousand, four hundred two".