740491920 has 360 divisors, whose sum is σ = 2932937280. Its totient is φ = 166924800.

The previous prime is 740491901. The next prime is 740491931. The reversal of 740491920 is 29194047.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4903845 + ... + 4903995.

It is an arithmetic number, because the mean of its divisors is an integer number (8147048).

Almost surely, 2^740491920 is an apocalyptic number.

740491920 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 740491920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1466468640).

740491920 is an abundant number, since it is smaller than the sum of its proper divisors (2192445360).

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

740491920 is a wasteful number, since it uses less digits than its factorization.

740491920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 740491920 is about 27211.9811847649. The cubic root of 740491920 is about 904.7045503422.

The spelling of 740491920 in words is "seven hundred forty million, four hundred ninety-one thousand, nine hundred twenty".