740040394 has 8 divisors (see below), whose sum is σ = 1110288420. Its totient is φ = 369944256.

The previous prime is 740040377. The next prime is 740040409. The reversal of 740040394 is 493040047.

It can be written as a sum of positive squares in 2 ways, for example, as 500193225 + 239847169 = 22365^2 + 15487^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24889 + ... + 45820.

Almost surely, 2^740040394 is an apocalyptic number.

740040394 is a deficient number, since it is larger than the sum of its proper divisors (370248026).

740040394 is a wasteful number, since it uses less digits than its factorization.

740040394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75944.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 740040394 is about 27203.6834638253. The cubic root of 740040394 is about 904.5206272531.

The spelling of 740040394 in words is "seven hundred forty million, forty thousand, three hundred ninety-four".