742369394 has 16 divisors (see below), whose sum is σ = 1200647448. Its totient is φ = 342221952.

The previous prime is 742369391. The next prime is 742369403. The reversal of 742369394 is 493963247.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 613206169 + 129163225 = 24763^2 + 11365^2 .

It is a super-4 number, since 4×742369394⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (742369391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5624 + ... + 38940.

Almost surely, 2^742369394 is an apocalyptic number.

742369394 is a deficient number, since it is larger than the sum of its proper divisors (458278054).

742369394 is a wasteful number, since it uses less digits than its factorization.

742369394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34189.

The product of its digits is 979776, while the sum is 47.

The square root of 742369394 is about 27246.4565402549. The cubic root of 742369394 is about 905.4685135542.

The spelling of 742369394 in words is "seven hundred forty-two million, three hundred sixty-nine thousand, three hundred ninety-four".