1906603742 has 16 divisors (see below), whose sum is σ = 2874731280. Its totient is φ = 948371328.

The previous prime is 1906603723. The next prime is 1906603799. The reversal of 1906603742 is 2473066091.

It is a junction number, because it is equal to n+sod(n) for n = 1906603696 and 1906603705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407078 + ... + 411734.

It is an arithmetic number, because the mean of its divisors is an integer number (179670705).

Almost surely, 2^1906603742 is an apocalyptic number.

1906603742 is a deficient number, since it is larger than the sum of its proper divisors (968127538).

1906603742 is a wasteful number, since it uses less digits than its factorization.

1906603742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5675.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 1906603742 is about 43664.6738451119. The cubic root of 1906603742 is about 1239.9956082918.

The spelling of 1906603742 in words is "one billion, nine hundred six million, six hundred three thousand, seven hundred forty-two".