740408738 has 4 divisors (see below), whose sum is σ = 1110613110. Its totient is φ = 370204368.

The previous prime is 740408707. The next prime is 740408749. The reversal of 740408738 is 837804047.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 731864809 + 8543929 = 27053^2 + 2923^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 740408695 and 740408704.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185102183 + ... + 185102186.

Almost surely, 2^740408738 is an apocalyptic number.

740408738 is a deficient number, since it is larger than the sum of its proper divisors (370204372).

740408738 is a wasteful number, since it uses less digits than its factorization.

740408738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370204371.

The product of its (nonzero) digits is 150528, while the sum is 41.

The square root of 740408738 is about 27210.4527341976. The cubic root of 740408738 is about 904.6706728841.

The spelling of 740408738 in words is "seven hundred forty million, four hundred eight thousand, seven hundred thirty-eight".