11620405 has 16 divisors (see below), whose sum is σ = 14949504. Its totient is φ = 8648640.

The previous prime is 11620397. The next prime is 11620423. The reversal of 11620405 is 50402611.

It is not a de Polignac number, because 11620405 - 2³ = 11620397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2890 + ... + 5620.

It is an arithmetic number, because the mean of its divisors is an integer number (934344).

Almost surely, 2^11620405 is an apocalyptic number.

It is an amenable number.

11620405 is a deficient number, since it is larger than the sum of its proper divisors (3329099).

11620405 is a wasteful number, since it uses less digits than its factorization.

11620405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2796.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 11620405 is about 3408.8715141524. The cubic root of 11620405 is about 226.5028937607.

The spelling of 11620405 in words is "eleven million, six hundred twenty thousand, four hundred five".