1729440942 has 16 divisors (see below), whose sum is σ = 3476265600. Its totient is φ = 573583032.

The previous prime is 1729440941. The next prime is 1729440943. The reversal of 1729440942 is 2490449271.

It is an interprime number because it is at equal distance from previous prime (1729440941) and next prime (1729440943).

It is a junction number, because it is equal to n+sod(n) for n = 1729440894 and 1729440903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1729440941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 723028 + ... + 725415.

It is an arithmetic number, because the mean of its divisors is an integer number (217266600).

Almost surely, 2^1729440942 is an apocalyptic number.

1729440942 is an abundant number, since it is smaller than the sum of its proper divisors (1746824658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1729440942 is a wasteful number, since it uses less digits than its factorization.

1729440942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448647.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 1729440942 is about 41586.5476085717. The cubic root of 1729440942 is about 1200.3334587180. Note that the first 3 decimals are identical.

The spelling of 1729440942 in words is "one billion, seven hundred twenty-nine million, four hundred forty thousand, nine hundred forty-two".