740561481 has 32 divisors (see below), whose sum is σ = 1198512000. Its totient is φ = 448208640.

The previous prime is 740561447. The next prime is 740561483. The reversal of 740561481 is 184165047.

It is a happy number.

It is not a de Polignac number, because 740561481 - 2²³ = 732172873 is a prime.

It is a super-2 number, since 2×740561481² = 1096862614281826722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (740561483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 310365 + ... + 312741.

It is an arithmetic number, because the mean of its divisors is an integer number (37453500).

Almost surely, 2^740561481 is an apocalyptic number.

It is an amenable number.

740561481 is a deficient number, since it is larger than the sum of its proper divisors (457950519).

740561481 is a wasteful number, since it uses less digits than its factorization.

740561481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3446 (or 3440 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 740561481 is about 27213.2592866051. The cubic root of 740561481 is about 904.7328784401.

It can be divided in two parts, 7405 and 61481, that added together give a palindrome (68886).

The spelling of 740561481 in words is "seven hundred forty million, five hundred sixty-one thousand, four hundred eighty-one".