745477242 has 32 divisors (see below), whose sum is σ = 1579018752. Its totient is φ = 234137904.

The previous prime is 745477223. The next prime is 745477253. The reversal of 745477242 is 242774547.

It is a super-3 number, since 3×745477242³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 745477194 and 745477203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31068 + ... + 49559.

It is an arithmetic number, because the mean of its divisors is an integer number (49344336).

Almost surely, 2^745477242 is an apocalyptic number.

745477242 is an abundant number, since it is smaller than the sum of its proper divisors (833541510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

745477242 is a wasteful number, since it uses less digits than its factorization.

745477242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80722.

The product of its digits is 439040, while the sum is 42.

The square root of 745477242 is about 27303.4291252949. The cubic root of 745477242 is about 906.7303025969.

The spelling of 745477242 in words is "seven hundred forty-five million, four hundred seventy-seven thousand, two hundred forty-two".