1742742 has 32 divisors (see below), whose sum is σ = 3945600. Its totient is φ = 570024.

The previous prime is 1742731. The next prime is 1742753. The reversal of 1742742 is 2472471.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1742731) and next prime (1742753).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2913 + ... + 3459.

It is an arithmetic number, because the mean of its divisors is an integer number (123300).

2^1742742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1742742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1972800).

1742742 is an abundant number, since it is smaller than the sum of its proper divisors (2202858).

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

1742742 is a wasteful number, since it uses less digits than its factorization.

1742742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617 (or 611 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 1742742 is about 1320.1295390983. The cubic root of 1742742 is about 120.3402841437.

1742742 divided by its sum of digits (27) gives a palindrome (64546).

It can be divided in two parts, 174 and 2742, that added together give a square (2916 = 54²).

The spelling of 1742742 in words is "one million, seven hundred forty-two thousand, seven hundred forty-two".