740821974 has 32 divisors (see below), whose sum is σ = 1518168960. Its totient is φ = 240868992.

The previous prime is 740821967. The next prime is 740821979. The reversal of 740821974 is 479128047.

It is a happy number.

It is a super-2 number, since 2×740821974² = 1097634394322513352, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740821979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250597 + ... + 253535.

It is an arithmetic number, because the mean of its divisors is an integer number (47442780).

Almost surely, 2^740821974 is an apocalyptic number.

740821974 is an abundant number, since it is smaller than the sum of its proper divisors (777346986).

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

740821974 is a wasteful number, since it uses less digits than its factorization.

740821974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 740821974 is about 27218.0450069435. The cubic root of 740821974 is about 904.8389461378.

The spelling of 740821974 in words is "seven hundred forty million, eight hundred twenty-one thousand, nine hundred seventy-four".