741779640 has 384 divisors, whose sum is σ = 2925331200. Its totient is φ = 166682880.

The previous prime is 741779629. The next prime is 741779641. The reversal of 741779640 is 46977147.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (741779641) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5662375 + ... + 5662505.

It is an arithmetic number, because the mean of its divisors is an integer number (7618050).

Almost surely, 2^741779640 is an apocalyptic number.

741779640 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 741779640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1462665600).

741779640 is an abundant number, since it is smaller than the sum of its proper divisors (2183551560).

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

741779640 is a wasteful number, since it uses less digits than its factorization.

741779640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The square root of 741779640 is about 27235.6318083499. The cubic root of 741779640 is about 905.2286755650.

The spelling of 741779640 in words is "seven hundred forty-one million, seven hundred seventy-nine thousand, six hundred forty".