742827780 has 96 divisors (see below), whose sum is σ = 2411539200. Its totient is φ = 189471744.

The previous prime is 742827719. The next prime is 742827823. The reversal of 742827780 is 87728247.

It is a super-2 number, since 2×742827780² = 1103586221479456800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17485 + ... + 42324.

It is an arithmetic number, because the mean of its divisors is an integer number (25120200).

Almost surely, 2^742827780 is an apocalyptic number.

It is an amenable number.

742827780 is an abundant number, since it is smaller than the sum of its proper divisors (1668711420).

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

742827780 is a wasteful number, since it uses less digits than its factorization.

742827780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59850 (or 59842 counting only the distinct ones).

The product of its (nonzero) digits is 351232, while the sum is 45.

The square root of 742827780 is about 27254.8670882835. The cubic root of 742827780 is about 905.6548397937.

The spelling of 742827780 in words is "seven hundred forty-two million, eight hundred twenty-seven thousand, seven hundred eighty".