Multipling 747474 by its sum of digits (33), we get a palindrome (24666642).
Adding to 747474 its reverse (474747), we get a palindrome (1222221).
It is an alternating number because its digits alternate between odd and even.
747474 is an undulating number in base 10.
It is a congruent number.
It is an unprimeable number.
2747474 is an apocalyptic number.
747474 is a gapful number since it is divisible by the number (74) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 747474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (945504).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
747474 is a wasteful number, since it uses less digits than its factorization.
747474 is an evil number, because the sum of its binary digits is even.
The square root of 747474 is about 864.5657869705. The cubic root of 747474 is about 90.7539138778.
The spelling of 747474 in words is "seven hundred forty-seven thousand, four hundred seventy-four", and thus it is an iban number.