1742406731 has 6 divisors (see below), whose sum is σ = 1886748300. Its totient is φ = 1608375288.

The previous prime is 1742406719. The next prime is 1742406749. The reversal of 1742406731 is 1376042471.

It is a de Polignac number, because none of the positive numbers 2^k-1742406731 is a prime.

It is a super-2 number, since 2×1742406731² = 6071962432468212722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1742406691 and 1742406700.

It is not an unprimeable number, because it can be changed into a prime (1742406031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5154881 + ... + 5155218.

It is an arithmetic number, because the mean of its divisors is an integer number (314458050).

Almost surely, 2^1742406731 is an apocalyptic number.

1742406731 is a deficient number, since it is larger than the sum of its proper divisors (144341569).

1742406731 is a wasteful number, since it uses less digits than its factorization.

1742406731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10310125 (or 10310112 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 1742406731 is about 41742.1457402468. The cubic root of 1742406731 is about 1203.3256662077.

The spelling of 1742406731 in words is "one billion, seven hundred forty-two million, four hundred six thousand, seven hundred thirty-one".