740423057 has 8 divisors (see below), whose sum is σ = 812572992. Its totient is φ = 669079600.

The previous prime is 740423053. The next prime is 740423087. The reversal of 740423057 is 750324047.

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

It is a cyclic number.

It is not a de Polignac number, because 740423057 - 2² = 740423053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (740423051) 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, 199694 + ... + 203367.

It is an arithmetic number, because the mean of its divisors is an integer number (101571624).

Almost surely, 2^740423057 is an apocalyptic number.

It is an amenable number.

740423057 is a deficient number, since it is larger than the sum of its proper divisors (72149935).

740423057 is a wasteful number, since it uses less digits than its factorization.

740423057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403239.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 740423057 is about 27210.7158487240. The cubic root of 740423057 is about 904.6765047511.

The spelling of 740423057 in words is "seven hundred forty million, four hundred twenty-three thousand, fifty-seven".