11742445 has 24 divisors (see below), whose sum is σ = 16690968. Its totient is φ = 7877760.

The previous prime is 11742421. The next prime is 11742457. The reversal of 11742445 is 54424711.

It can be written as a sum of positive squares in 4 ways, for example, as 1283689 + 10458756 = 1133^2 + 3234^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11742445 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

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 23 ways as a sum of consecutive naturals, for example, 7119 + ... + 8611.

It is an arithmetic number, because the mean of its divisors is an integer number (695457).

Almost surely, 2^11742445 is an apocalyptic number.

It is an amenable number.

11742445 is a deficient number, since it is larger than the sum of its proper divisors (4948523).

11742445 is a wasteful number, since it uses less digits than its factorization.

11742445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533 (or 1522 counting only the distinct ones).

The product of its digits is 4480, while the sum is 28.

The square root of 11742445 is about 3426.7251129905. The cubic root of 11742445 is about 227.2930614291.

The spelling of 11742445 in words is "eleven million, seven hundred forty-two thousand, four hundred forty-five".