11420919 has 40 divisors (see below), whose sum is σ = 18498480. Its totient is φ = 6998400.

The previous prime is 11420909. The next prime is 11420939. The reversal of 11420919 is 91902411.

It is not a de Polignac number, because 11420919 - 2⁷ = 11420791 is a prime.

It is a super-2 number, since 2×11420919² = 260874781609122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 11420892 and 11420901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420909) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 63009 + ... + 63189.

It is an arithmetic number, because the mean of its divisors is an integer number (462462).

Almost surely, 2^11420919 is an apocalyptic number.

11420919 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

11420919 is a deficient number, since it is larger than the sum of its proper divisors (7077561).

11420919 is a wasteful number, since it uses less digits than its factorization.

11420919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 11420919 is about 3379.4850199402. The cubic root of 11420919 is about 225.1992900966.

The spelling of 11420919 in words is "eleven million, four hundred twenty thousand, nine hundred nineteen".