4001742 has 24 divisors (see below), whose sum is σ = 9127560. Its totient is φ = 1263600.

The previous prime is 4001741. The next prime is 4001743. The reversal of 4001742 is 2471004.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4001741) and next prime (4001743).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4001741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5509 + ... + 6192.

It is an arithmetic number, because the mean of its divisors is an integer number (380315).

Almost surely, 2^4001742 is an apocalyptic number.

4001742 is an abundant number, since it is smaller than the sum of its proper divisors (5125818).

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

4001742 is a wasteful number, since it uses less digits than its factorization.

4001742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11728 (or 11725 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 4001742 is about 2000.4354525953. The cubic root of 4001742 is about 158.7631456244.

Adding to 4001742 its reverse (2471004), we get a palindrome (6472746).

The spelling of 4001742 in words is "four million, one thousand, seven hundred forty-two".