740547945 has 24 divisors (see below), whose sum is σ = 1314927432. Its totient is φ = 385324800.

The previous prime is 740547923. The next prime is 740547947. The reversal of 740547945 is 549745047.

It can be written as a sum of positive squares in 4 ways, for example, as 576 + 740547369 = 24^2 + 27213^2 .

It is not a de Polignac number, because 740547945 - 2¹⁰ = 740546921 is a prime.

It is a super-2 number, since 2×740547945² = 1096822517687446050, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 740547945.

It is not an unprimeable number, because it can be changed into a prime (740547947) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 198846 + ... + 202535.

It is an arithmetic number, because the mean of its divisors is an integer number (54788643).

Almost surely, 2^740547945 is an apocalyptic number.

It is an amenable number.

740547945 is a deficient number, since it is larger than the sum of its proper divisors (574379487).

740547945 is a wasteful number, since it uses less digits than its factorization.

740547945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401433 (or 401430 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The square root of 740547945 is about 27213.0105831751. The cubic root of 740547945 is about 904.7273661636.

The spelling of 740547945 in words is "seven hundred forty million, five hundred forty-seven thousand, nine hundred forty-five".