1020742774 has 8 divisors (see below), whose sum is σ = 1531669968. Its totient is φ = 510186120.

The previous prime is 1020742771. The next prime is 1020742787. The reversal of 1020742774 is 4772470201.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020742771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85642 + ... + 96829.

It is an arithmetic number, because the mean of its divisors is an integer number (191458746).

Almost surely, 2^1020742774 is an apocalyptic number.

1020742774 is a deficient number, since it is larger than the sum of its proper divisors (510927194).

1020742774 is a wasteful number, since it uses less digits than its factorization.

1020742774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185270.

The product of its (nonzero) digits is 21952, while the sum is 34.

The square root of 1020742774 is about 31949.0653071416. The cubic root of 1020742774 is about 1006.8669944481.

The spelling of 1020742774 in words is "one billion, twenty million, seven hundred forty-two thousand, seven hundred seventy-four".