740690881956 has 135 divisors (see below), whose sum is σ = 1956154086579. Its totient is φ = 244392515712.

The previous prime is 740690881859. The next prime is 740690881981. The reversal of 740690881956 is 659188096047.

The square root of 740690881956 is 860634.

It is a perfect power (a square), and thus also a powerful number.

740690881956 is a `hidden beast` number, since 7 + 406 + 90 + 88 + 19 + 56 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 78394400100 + 662296481856 = 279990^2 + 813816^2 .

It is a super-2 number, since 2×740690881956² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 740690881893 and 740690881902.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 2122323270 + ... + 2122323618.

Almost surely, 2^740690881956 is an apocalyptic number.

740690881956 is the 860634-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 740690881956

740690881956 is an abundant number, since it is smaller than the sum of its proper divisors (1215463204623).

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

740690881956 is an equidigital number, since it uses as much as digits as its factorization.

740690881956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 740690881956 in words is "seven hundred forty billion, six hundred ninety million, eight hundred eighty-one thousand, nine hundred fifty-six".