740399345 has 16 divisors (see below), whose sum is σ = 1021282560. Its totient is φ = 504763584.

The previous prime is 740399339. The next prime is 740399393. The reversal of 740399345 is 543993047.

It is a cyclic number.

It is not a de Polignac number, because 740399345 - 2¹⁸ = 740137201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 740399296 and 740399305.

It is an unprimeable number.

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, 55085 + ... + 67194.

It is an arithmetic number, because the mean of its divisors is an integer number (63830160).

Almost surely, 2^740399345 is an apocalyptic number.

It is an amenable number.

740399345 is a deficient number, since it is larger than the sum of its proper divisors (280883215).

740399345 is a wasteful number, since it uses less digits than its factorization.

740399345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122464.

The product of its (nonzero) digits is 408240, while the sum is 44.

The square root of 740399345 is about 27210.2801345374. The cubic root of 740399345 is about 904.6668472460. Note that the first 3 decimals are identical.

The spelling of 740399345 in words is "seven hundred forty million, three hundred ninety-nine thousand, three hundred forty-five".