742275720 has 48 divisors (see below), whose sum is σ = 2412397260. Its totient is φ = 197940096.

The previous prime is 742275697. The next prime is 742275733. The reversal of 742275720 is 27572247.

It can be written as a sum of positive squares in 2 ways, for example, as 738426276 + 3849444 = 27174^2 + 1962^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1030579 + ... + 1031298.

Almost surely, 2^742275720 is an apocalyptic number.

It is an amenable number.

742275720 is an abundant number, since it is smaller than the sum of its proper divisors (1670121540).

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

742275720 is a wasteful number, since it uses less digits than its factorization.

742275720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061894 (or 2061887 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 742275720 is about 27244.7374735012. The cubic root of 742275720 is about 905.4304272026.

The spelling of 742275720 in words is "seven hundred forty-two million, two hundred seventy-five thousand, seven hundred twenty".