742595640 has 32 divisors (see below), whose sum is σ = 2227787280. Its totient is φ = 198025472.

The previous prime is 742595627. The next prime is 742595647. The reversal of 742595640 is 46595247.

It is a junction number, because it is equal to n+sod(n) for n = 742595592 and 742595601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742595647) 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, 3094029 + ... + 3094268.

Almost surely, 2^742595640 is an apocalyptic number.

It is an amenable number.

742595640 is an abundant number, since it is smaller than the sum of its proper divisors (1485191640).

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

742595640 is a wasteful number, since it uses less digits than its factorization.

742595640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6188311 (or 6188307 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The square root of 742595640 is about 27250.6080666102. The cubic root of 742595640 is about 905.5604883507.

The spelling of 742595640 in words is "seven hundred forty-two million, five hundred ninety-five thousand, six hundred forty".