742077646 has 4 divisors (see below), whose sum is σ = 1113116472. Its totient is φ = 371038822.

The previous prime is 742077643. The next prime is 742077649. The reversal of 742077646 is 646770247.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (742077643) and next prime (742077649).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742077643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185519410 + ... + 185519413.

It is an arithmetic number, because the mean of its divisors is an integer number (278279118).

Almost surely, 2^742077646 is an apocalyptic number.

742077646 is a deficient number, since it is larger than the sum of its proper divisors (371038826).

742077646 is a wasteful number, since it uses less digits than its factorization.

742077646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371038825.

The product of its (nonzero) digits is 395136, while the sum is 43.

The square root of 742077646 is about 27241.1021436358. The cubic root of 742077646 is about 905.3498829267.

The spelling of 742077646 in words is "seven hundred forty-two million, seventy-seven thousand, six hundred forty-six".