740542 has 16 divisors (see below), whose sum is σ = 1242864. Its totient is φ = 328000.

The previous prime is 740533. The next prime is 740549. The reversal of 740542 is 245047.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a d-powerful number, because it can be written as 7⁶ + 4⁶ + 5⁷ + 0 + 4⁷ + 2¹⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740549) by changing a digit.

740542 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492 + ... + 1312.

It is an arithmetic number, because the mean of its divisors is an integer number (77679).

2⁷⁴⁰⁵⁴² is an apocalyptic number.

740542 is a deficient number, since it is larger than the sum of its proper divisors (502322).

740542 is a wasteful number, since it uses less digits than its factorization.

740542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 740542 is about 860.5475001416. The cubic root of 740542 is about 90.4724945155.

Adding to 740542 its reverse (245047), we get a palindrome (985589).

It can be divided in two parts, 7405 and 42, that added together give a palindrome (7447).

The spelling of 740542 in words is "seven hundred forty thousand, five hundred forty-two".